DATE – 5 February 2020 (CC4)

CROP STAGE –

• Early flower

• 4-7 NAWF

• Bollfill

• cutout

DISEASE -

• Fusarium

• Verticillium

INSECTS/BENEFICIALS -

• Mirids increasing in numbers.

Chemical control in some areas has

been needed

• Red blue beetles/apple dimpling

bugs/ low spider numbers and jassids

• Very low whitefly numbers

• The odd aphid

WEEDS -

• Laybys have worked well

• Plenty around after rain

• Vines are proving difficult to kill

WEATHER -

• Hot and humid

• Patchy rain

• 100-200 mm depending on location

• Rain will be beneficial for later

planted crops

• Cloudy weather has induced fruit

loss in lower canopy

OTHER -

• Some overland and river pumping has occurred

• Mungbeans, sorghum and corn being planted in

areas with enough moisture

• Some crops are quite ‘leggy’ with Pix being

applied

• Irrigation due, but more rain needed

• Outlook improved for some

Regards, Annabel Twine

Regional Extension Officer Darling Downs M 0447 176 007

E annabel.twine@cottoninfo.net.au W www.cottoninfo.com.au

General guide only, not comprehensive or specific technical advice. Circumstances vary from farm to farm. To the fullest extent permitted by law,

CSD expressly disclaims all liability for any loss or damage arising from reliance upon any information, statement or opinion in this presentation or from any

errors or omissions in this document.

DATE – 21 February 2020 (CC5)

CROP STAGE –

• 24-26 nodes

• Mid flowering – 10nacb

• 5 nawf to cutout

DISEASE -

• Fusarium

• Minor verticillium

• Minor/moderate boll rot

INSECTS/BENEFICIALS -

• Red and blue beetles

• Mirids low to building in numbers

• Increasing number of cotton stainers

• SLWF hot spots but numbers on the

rise

• Harlequin bugs

WEEDS -

• Plenty of weeds after rain

• Very high germination of Feathertop

Rhodes grass

WEATHER -

• humid

• wet and cloudy

• Cloudy weather has induced fruit

loss in lower canopy

OTHER -

• Outlook improved somewhat

• Crops have gone from a DISASTER to good

potential

• Pix being used in some crops

Regards,

Annabel Twine Regional Extension Officer Darling Downs

M 0447 176 007 E annabel.twine@cottoninfo.net.au W www.cottoninfo.com.au

General guide only, not comprehensive or specific technical advice.

Circumstances vary from farm to farm. To the fullest extent permitted by law, CSD expressly disclaims all liability for any loss or damage arising from reliance

upon any information, statement or opinion in this presentation or from any errors or omissions in this document.

DATE – Week Ending 7 February 2020

St George

Day degree accumulation for the current season is tracking closely to that from last season.

# First flower and Open Boll estimates Base 12 adjusted for cold shock days from this season (19/20).

For more information on Day degrees and the change in the measurement base, visit the CSD website via this link.

0

200

400

600

800

1000

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1400

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01

No

v

04

No

v

07

No

v

10

No

v

13

No

v

16

No

v

19

No

v

22

No

v

25

No

v

28

No

v

01

Dec

04

Dec

07

Dec

10

Dec

13

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16

Dec

19

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22

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25

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28

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rees

Day Degree Accummulation - St George

Base 12 19/20 DD1532 19/20 Base 12 18/19

DD1532 18/19 First Flower Base 12 # First Flower Base 1532

Open Boll Base 12 Open Boll DD1532

CROP STAGE - • Crops ranging from peak flower to approx. 10% open boll with some crops being managed for cut out and water

availability. Some first fruiting position loss reported – attributed to hot temperatures and some cloudy days.

INSECTS/BENEFICIALS - • Pest pressure remains low in general for the stage of season.

• Mirid numbers variable and building towards repeat control measures.

• SLW building and some sprays applied – waiting to see effectiveness of these.

• Low thrip numbers on some earlier blocks and an absence of mites and aphids.

• No “escapee” helicoverpa larvae observed as yet.

• Beneficial numbers remain high

WEEDS - • Under control.

DISEASE - • Low levels of fusarium in blocks with prior history however expression limited – not favoured by seasonal conditions.

GENERAL COMMENTS -

• A minor flow into Beardmore dam will see a small amount of water allocated to irrigators. This combined with forecast

rain will assist with some of the mid to late crops that are being managed for the impact of high heat and dwindling

irrigation water supply.

MacIntyre

Day degree accumulation for the current season is tracking closely to that from last season.

# First flower and Open Boll estimates Base 12 adjusted for cold shock days from this season (19/20).

For more information on Day degrees and the change in the measurement base, visit the CSD website via this link.

0

200

400

600

800

1000

1200

1400

1600

1800

01

No

v

04

No

v

07

No

v

10

No

v

13

No

v

16

No

v

19

No

v

22

No

v

25

No

v

28

No

v

01

Dec

04

Dec

07

Dec

10

Dec

13

Dec

16

Dec

19

Dec

22

Dec

25

Dec

28

Dec

31

Dec

03

Jan

06

Jan

09

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12

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15

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18

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21

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24

Jan

27

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30

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b

05

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Deg

rees

Day Degree Accummulation - Goondiwindi

Base 12 2019/20 DD1532 2019/20 Base 12 2018/19

DD1532 2018/19 First Flower Base 12# First Flower DD1532

CROP STAGE - • Crops ranging from peak flower to cut out.

INSECTS/BENEFICIALS - • Moderate mirids and most crops treated once or twice.

• SLW building with treatment expected mid-February at current development rates.

WEEDS - • Under control and row closure achieved on most crops.

DISEASE - • Low level fusarium and verticillium evident on the heavier soils with history.

GENERAL COMMENTS - • Mediocre rainfall for first week of month. Cloudy weather causing fruit shed on susceptible crops. Sweating on

current rain forecast to deliver prospects for winter crop and following summer irrigation water supply.

The CottonInfo Bug Check is a summary of cotton crop information gathered from consultants by each CottonInfo Regional

Extension Officer (REO) for their valley. This information is collected on a regular basis to share with growers, researchers

and other consultants. It should be noted that the information is just a snap shot in time. It does not claim to be a thorough

report for each valley, just a summary of comments received.

DATE – Week Ending 24 January 2020

St George

Day degree accumulation for the current season is tracking closely to that from last season.

# First flower and Open Boll estimates Base 12 adjusted for cold shock days from this season (19/20).

For more information on Day degrees and the change in the measurement base, visit the CSD website via this link.

0

200

400

600

800

1000

1200

1400

1600

1800

01

No

v

04

No

v

07

No

v

10

No

v

13

No

v

16

No

v

19

No

v

22

No

v

25

No

v

28

No

v

01

Dec

04

Dec

07

Dec

10

Dec

13

Dec

16

Dec

19

Dec

22

Dec

25

Dec

28

Dec

31

Dec

03

Jan

06

Jan

09

Jan

12

Jan

15

Jan

18

Jan

21

Jan

24

Jan

27

Jan

Day

Deg

rees

Day Degree Accummulation - St George

Base 12 19/20 DD1532 19/20 Base 12 18/19DD1532 18/19 First Flower Base 12 # First Flower Base 1532Open Boll DD1532 Open Boll Base 12

CROP STAGE - • Crops ranging from first flower to open boll with some crops being managed for cut out. Retention average to

good.

INSECTS/BENEFICIALS - • Pest pressure remains low in general.

• Mirid sprays applied or due soon and some pre-emptive applied with other field operations.

• Adult SLW building with one consultant expecting to spray soon.

WEEDS - • Under control.

DISEASE - • Low levels of fusarium in blocks with prior history however expression limited – not favoured by seasonal

conditions.

GENERAL COMMENTS - • Areas have been dropped out to match remaining irrigation water supply. Some minor shedding possibly

related to dust. “Parrot beaking” of bolls noted in some crops most likely due to high temperatures

during flowering.

MacIntyre

Day degree accumulation for the current season is tracking closely to that from last season.

# First flower and Open Boll estimates Base 12 adjusted for cold shock days from this season (19/20).

For more information on Day degrees and the change in the measurement base, visit the CSD website via this link.

0

200

400

600

800

1000

1200

1400

1600

1800

01

No

v

04

No

v

07

No

v

10

No

v

13

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v

16

No

v

19

No

v

22

No

v

25

No

v

28

No

v

01

Dec

04

Dec

07

Dec

10

Dec

13

Dec

16

Dec

19

Dec

22

Dec

25

Dec

28

Dec

31

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03

Jan

06

Jan

09

Jan

12

Jan

15

Jan

18

Jan

21

Jan

24

Jan

27

Jan

Day

Deg

rees

Date

Day Degree Accummulation - Goondiwindi

Base 12 2019/20 DD1532 2019/20 Base 12 2018/19

DD1532 2018/19 First Flower Base 12# First Flower DD1532

CROP STAGE - • Most crops approaching cut out although some late plant behind this.

•

INSECTS/BENEFICIALS - • Moderate mirids and most crops treated once.

• SLW building but treatment not expected within the next week.

WEEDS - • Under control.

DISEASE - • Low level fusarium on the historic heavier soils – pretty normal.

GENERAL COMMENTS - • Rainfall variable ranging from 25-125mm in local area over past fortnight. Along with softer weather this

has been useful to crops.

The CottonInfo Bug Check is a summary of cotton crop information gathered from consultants by each CottonInfo

Regional Extension Officer (REO) for their valley. This information is collected on a regular basis to share with

growers, researchers and other consultants. It should be noted that the information is just a snap shot in time. It

does not claim to be a thorough report for each valley, just a summary of comments received.

DATE – 31st January 2020

Day Degrees – Moree, 1 Nov – 30 Jan

Accumulated Day Degrees 2019 DD 1532, 2018,

2017, 2016 & 10-year average (2010-2019) DD

1532 compared to 2019 Base12

Source: https://www.csd.net.au/ddc Seasonal Comparison Summary 1 Nov – 30 Jan

1 Nov –

30 Jan 2019 2018 2017 2016

10 year mean 2010-2019

Base 12 1457.2 1429.8 1334.8 1411.2 1323.2

DD1532 923.4 931.9 860.6 896 863.6

Cold shock days 5 2 3 8 2.9

Days above 36°C

51 41 36 41 29.6

Nights above 25°C

17 8 8 11 6.1

Days above 40°C

14 11 5 13 6.7

Average temperature

(°C) 27.9 27.7 26.6 27.4 26.5

Source: https://www.csd.net.au/ddc

CROP STAGE - 23 to 26 Nodes

9 NAWF to Cutout

Good retention, although some shedding 2nd

and 3rd position fruit with recent rain and

cloudy weather

Pix applications common

INSECTS/BENEFICIALS - Low numbers Mirids, Thrips. Some Mirid

sprays, mostly Fipronil, but some fields no

sprays.

SLW increasing. Pyriproyfen applied to some

fields and waiting to see results. Nymphs

present and some parasitism evident,

Beneficial numbers good, mostly Red and

Blue Beetles and Spiders.

WEEDS - Nothing reported, canopy closure

DISEASE - Some Verticillium and Fusarium in known

areas.

GENERAL COMMENTS - All Moree irrigated cotton crops got under

recent rain 40-100mm.

What the consultants are saying: Advanced crops 25 – 26 nodes, 6NAWF, late

crops 20 -22 nodes, 9NAWF, all pests very quiet,

beneficials 7-8/m.

Significant fruit shed requiring multiple Pix

applications. Total Pix up from normal. Fruit load

should have checked growth but fruit shed

taking the brakes off crop.

SLW slowly rising, 5% parasitism in one field

25 nodes, odd mirid, retentions still high so no

sprays yet. Some shedding with rain and

overcast conditions last week. Seeing more

vegetative branches than usual.

Disease pressure very low at this stage. Will

monitor alternaria to see if it develops with

showery weather and cooler days next week,

given early incidence in the valley

0

200

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01

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v

05

No

v

09

No

v

13

No

v

17

No

v

21

No

v

25

No

v

29

No

v

03

Dec

07

Dec

11

Dec

15

Dec

19

Dec

23

Dec

27

Dec

31

Dec

04

Jan

08

Jan

12

Jan

16

Jan

20

Jan

24

Jan

28

Jan

Day

Deg

rees

2019 Base 12 2019 DD1532

2018 DD1532 2017 DD1532

2016 DD1532 Average 2010-2019 DD1532

The CottonInfo Bug Check is a summary of cotton crop information gathered from consultants by each CottonInfo Regional Extension Officer (REO) for their valley. This

information is collected on a regular basis to share with growers, researchers and other consultants. It should be noted that the information is just a snap shot in time.

It does not claim to be a thorough report for each valley, just a summary of comments received.

DATE – 24th February 2020

Day Degrees – Moree, 1 Nov – 23 Feb

Accumulated Day Degrees 2019 DD 1532, 2018,

2017, 2016 & 10-year average (2010-2019) DD

1532 compared to 2019 Base12

Source: https://www.csd.net.au/ddc Seasonal Comparison Summary 1 Nov – 23 Feb

1 Nov –

23 Feb 2019 2018 2017 2016

10 year mean 2010-2019

Base 12 1810.6 1826.5 1711.7 1856.9 1687.5

DD1532 1164.4 1190.8 1101.7 1176.5 1106.4

Cold shock days 5 2 3 8 2.9

Days above 36°C

59 55 48 59 37.7

Nights above 25°C

21 11 9 21 8.8

Days above 40°C

14 12 11 21 8.4

Average temperature

(°C) 27.7 27.9 26.8 28.1 26.7

Source: https://www.csd.net.au/ddc

CROP STAGE – 23 - 28 Nodes, cutting out, most have already

cutout, plenty of shedding, pix applications.

INSECTS/BENEFICIALS - SLW generally low numbers, starting to build in

some fields.

Nymphs present and parasitism evident.

Mirids present, but low numbers

Apple dimpling bug – few to moderate

Mites in some fields, but very low numbers

Beneficials present in good numbers

DISEASE - Fusarium and Verticillium present with the cool, wet

weather.

Boll rot starting to show

Little bit of alternaria

GENERAL COMMENTS - Have been using Canopy Temperature Sensors,

which clearly shows the crop getting stressed even

though it has access to water on days with high

humidity.

What the consultants are saying: “Crops slowly approaching cutout but definitely

lingering around 4-5 NAWF due to earlier fruit loss.

May require late pix. It’s getting late and crops 2-3

weeks later than where they should be”.

“Shedding has been very high in some fields

especially where irrigation was followed by significant

rain”.

“Has been lots of shedding, now a very uneven crop,

with some plants with regrowth and others not)”

“Hayati (SLW parasite) present, SLW very low”.

“SLW starting to build again, admiral applied a month

ago”

“SLW all been sprayed with Admiral now, a few

nymphs, odd mites (very light numbers), cotton

strainers, plenty of beneficials”

“SLW quiet with parasites on the increase. No

admiral. Some mirids about”

“Fusarium present with the cool, wet weather, will

impact yield, odd plant with Vert, but not too bad”

0

200

400

600

800

1000

1200

1400

1600

1800

2000

01

No

v0

5 N

ov

09

No

v1

3 N

ov

17

No

v2

1 N

ov

25

No

v2

9 N

ov

03

Dec

07

Dec

11

Dec

15

Dec

19

Dec

23

Dec

27

Dec

31

Dec

04

Jan

08

Jan

12

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20

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28

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01

Feb

05

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Feb

13

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17

Feb

21

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Day

Deg

rees

2019 Base 12 2019 DD1532

2018 DD1532 2017 DD1532

2016 DD1532 Average 2010-2019 DD1532

The CottonInfo Bug Check is a summary of cotton crop information gathered from consultants by each CottonInfo Regional Extension Officer (REO) for their valley. This

information is collected on a regular basis to share with growers, researchers and other consultants. It should be noted that the information is just a snap shot in time.

It does not claim to be a thorough report for each valley, just a summary of comments received.

DATE – CROP CHECK 15st Jan to 1st Feb 2020

Season Summary

Average day degree accumulations are sitting

close to last season overall. Forbes is sitting a bit

higher than last season, however the nights

above 25°C are 60% less than last season which is

a good thing, some patchy rain in some areas.

In Narromine the Base 12 & 1532 are slightly less

than 2017/2018 season, and nights above 25°C

are reduced by 42% compared to last season. Hot

days are slightly higher at Geurie as are nights

above 25°C overall the base 12 is slightly higher

than last season and 1532 is lightly lower.

REGION – FORBES

Fig 1. Day Degree season summary: Source https://www.csd.net.au/ddc/results

Fig 2. Day Degree comparison using the base 12 and 1532. Source www.csd.net.au/ddc

CROP STAGE - From 23 – 27 Nodes

22 – 26 Nodes

5 – 6 NAWF and falling fast

50% have reached cut out 25% just had first Mepiquat and some late crops will finish flowering 10-17 Feb . Will need a warm finish.

IRRIGATION – RAINFALL Isolated storm on 17th Jan 5 -20mm

Rainfall did occur however it was very patchy.

Irrigation cycle 7-8 days where water is available

10 -12 days where it is running short – this has caused some cavitation in some early crops.

Flood irrigation crops on full cycle have used 8-9ML/ha with 3-4 to go! (rain needed)

INSECTS/ DISEASE Very minor Alternaria in 1 field after rain and

cooler weather 17th of Jan which had 90% seedling severity, crop has recovered well – suspect heat sorted it out.

Top five retention is still very good

Beneficials are present in most crops

Retention 90+

First SLW spotted this week

WEEDS - Some Barnyard grass escapes

Most fields have had the 3rd or 4th Glyphosate application

Odd windmill grass and ryegrass flowering

No spray drift evident

Cut back a few hectares due to water use being higher than anticipated

COMMENTS - Boll numbers looking pretty good so far

Crop potential good where irrigation has been maintained.

Most fields have been slow to cut out, particularly where Nitrogen is high

REGION – NARROMINE Fig 3. Day Degrees Season summary: Source

(https://www.csd.net.au/ddc/result)

Fig 4. Day Degrees Season summary: Source

(https://www.csd.net.au/ddc/result)

CROP STAGE - 20 -24 Nodes

24 -26 Nodes & 300 total fruit / m

22 – 24 Nodes

IRRIGATION – RAINFALL Rainfall varies from Nil to 40mm

6th crop irrigation for most, with 2 to 4 irrigations to go

Completed 5th in crop irrigation – 17 ml of rain in total

Pressurised systems have applied between 7.2 – 9 Megs/ha

Starting 6th in-crop irrigation for self mulching soils . Water use has been high and for some crops this will be the last irrigation due to higher than expected water use.

For majority of crops water will be tight at the end so may miss the last irrigation. High hopes on the current weather system to capture extra water.

INSECTS/BENEFICIALS -

Mirid Numbers increased in late Feb Mirid numbers at economic threshold SLW increased at the usual rate SLW numbers very low – monitoring continuing. No Mites, aphids or GVB to speak of SLW present but generally low numbers.

Location Latitude Longitude Date range

NARROMINE AIRPORT -32.2167 148.2333 15 Oct - 20 Jan

2019 2018 2017 10 year mean

Base 12 1338.5 1316 1206.8 1183.7

DD1532 799.2 817.8 733.9 712.5

Cold shock days 15 11 14 16.4

Days above 36°C 36 31 23 22.7

Nights above 25°C 3 7 3 2.5

Days above 40°C 15 15 9 6.6

Average temperature (°C) 25.4 25.3 24.1 23.8

GENERAL COMMENTS - Water usage didn’t increase as expected during

this period.

Most crops now cutout.

Boll shedding significant as expected.

Water supply issues continue.

Hot weather and high retention (76%) has slowed crop growth

Early planted crops (1357DD 5 – 6 NAWF), later planted crops (1289DD) 6-7NAWF

Most crops are cut out or approaching cut out.

Some parrot beaked bolls due to heat.

Overall crops are average to slightly above average yield potential, but will be depended on water at the end.

Rainfall did occur around the 17th of Nov with generally 20ml, however this was not widespread, some got none and some got up to 40mls.

REGION – GEURIE

Fig 4. Day Degrees Season summary: Source (https://www.csd.net.au/ddc/result

Fig 5. Day Degrees Season summary: Source

(https://www.csd.net.au/ddc/results)

CROP STAGE - 25 Nodes, 5 NAWF, cut out applied

INSECTS/BENEFICIALS/DISEASE -

Very quiet and low pressure in most areas Few GVB about Some Alternaria under the pivots GENERAL COMMENTS - Crops have big fruit loads

Watering flat out 8 day cycles in the times of heat I NEED MIRIDS ASAP …… To make sure our insect populations are getting monitored for resistance, I am doing some collections for the researchers this season, as its been quiet I have not been able to do many yet, just a reminder if you see any populations of SLW, Mirids, Mites and Aphids let me know and I will come and grab them and send them off for testing. If anyone has a Lucerne paddock that is harboring a few that would help as well. Just give me a call 0417226411

Fig 6: SLW – What to look for to evaluate parasitized SLW nymphs (Source Jamie Hopkinson Jan 2020)

Thanks to the consultants who get back to me each week, this

information has helped the research community stay across what is

happening in the valleys.

The CottonInfo Crop Check is a summary of cotton crop information

gathered from consultants by each CottonInfo Regional Extension

Officer (REO) for their valley. This information is collected on a regular

basis to share with growers, researchers and other consultants. It

should be noted that the information is just a snap shot in time. It

does not claim to be a thorough report for each valley, just a summary

of comments received. Please call your local REO if you need further

clarification on any information in this report. Please call

0417226411 with any questions you may have pertaining to this

report.

DATE – CROP CHECK 1stst to 18th Feb 2020

Season Summary

Source: bom.gov.au

We have finally had a weather system that has

delivered more than the usual 5mm of dust. The

rain has been patchy and storm activity has

meant that some missed out and some copped 3

months worth of rain in a few hours. In terms of

the Day Degree accumulation for the Upper

Lachlan area it is sitting slightly behind last season

and the nights above 25°C are less than half of

last season. Forbes had its coldest night (12.8

degrees ) and warmest day (44.9 degrees),

February has been the month of extremes.

In Narromine the Base 12 & 1532 are pretty much

on par with than 2017/2018 season, and nights

above 25°C are reduced by 48% compared to last

season. Hot days are significantly higher at Geurie

as are nights above 25°C overall the base 12 is

slightly higher than last season and 1532 is lightly

lower. Everyone is busy checking fallow and

booking in sprays to get ready for winter crops.

Reports of some chemicals being in short supply

are coming through.

REGION – FORBES

Fig 1. Day Degree season summary: Source https://www.csd.net.au/ddc/results

Fig 2. Day Degree comparison using the base 12 and 1532. Source www.csd.net.au/ddc

CROP STAGE - • From 23 – 27 Nodes

• 11/12 Nodes above cracked boll

• Cut out date averaging 17th Feb

• 22 – 25 Nodes

• 4 Nodes above WF

Location Latitude Longitude Date range

FORBES AIRPORT AWS -33.3627 147.9205 15 Oct - 18 Feb

2019 2018 2017 10 year mean

Base 12 1662.4 1699.1 1516 1508.1

DD1532 964 1034.4 884.8 877.8

Cold shock days 29 20 23 27.4

Days above 36°C 40 42 29 28.6

Nights above 25°C 4 10 2 2.3

Days above 40°C 15 16 11 8.3

Average temperature (°C) 24.6 25.1 23.6 23.4

DISEASE

• Alternaria appearing throughout the canopy from rian in recent weeks

• Some open cotton seeing boll rot low in the canopy

IRRIGATION – RAINFALL • Rainfall varied from 60-130ml across the area

• Most crops have 1 – 2 irrigations to go.

INSECTS • Mirids and SLW are present to varying degrees

• Mirid pressure easing – damage evident on young bolls.

WEEDS • Odd grass weed and fleabane present

• Relatively clean fields

COMMENTS - • Boll numbers have been impacted by lack of water

followed by wet cloudy conditions.

• Boll counts averaging 140/m

• Some cavitation has occurred.

• Most fields have been slow to cut out, particularly where Nitrogen is high, pix seems to be affected by the dust in some cases.

REGION – NARROMINE

Fig 3. Day Degrees Season summary: Source

(https://www.csd.net.au/ddc/result)

Fig 4. Day Degrees Season summary: Source

(https://www.csd.net.au/ddc/result)

CROP STAGE - • 23 – 25 Nodes

• 10 - 12 Nodes above cracked boll

• Boll Fill

IRRIGATION – RAINFALL • Rainfall varies from 70 mm to 150mm over last two

weeks

• Water use sits around 8-9ML/ha

• Some will be coming up to last irrigation in early march

• Everyone welcomed the rain over the last two weeks

Location Latitude Longitude Date range

NARROMINE AIRPORT -32.223 148.2292 15 Oct - 18 Feb

2019 2018 2017 10 year mean

Base 12 1793.3 1800 1666.3 1614.5

DD1532 1099.6 1132.6 1024.7 992.7

Cold shock days 15 11 14 16.7

Days above 36°C 46 50 40 34.2

Nights above 25°C 7 13 5 4.4

Days above 40°C 22 19 14 10

Average temperature (°C) 25.9 26.1 25 24.5

DISEASE • Verticillium not as bad as 2 seasons ago however

bit worse than last season

INSECTS/BENEFICIALS -

• SLW are hovering below threshold • Low Mites and SLW numbers • Mirids increased since January • Majority of crops have had 2 sprays • Mirids still building in some later crops • Beneficial numbers solid GENERAL COMMENTS - • In some areas rainfall has saved an irrigation

• Some crops that were 1 water short are now going to get home safe.

• With temperature conditions out of the extreme heat category top bolls are holding and starting to fill

• Some Verticillium is starting to show up in the odd plant

• Both the forbes and Narromine areas have reported that it is taking 2 to 3 passes of pix to properly cut out and plants are not responding to pix as they have in the past.

• Fingers crossed for 3 weeks of 33 degrees to fill the top crop.

I NEED MIRIDS ASAP …… To make sure our insect populations are getting monitored for resistance, I am doing some collections for the researchers this season, as its been quiet I have not been able to do many yet, just a reminder if you see any populations of SLW, Mirids, Mites and Aphids let me know

and I will come and grab them and send them off for testing. If anyone has a Lucerne paddock that is harboring a few that would help as well. Just give me a call 0417226411 Thanks to the consultants who get back to me each week, this

information has helped the research community stay across what is

happening in the valleys.

The CottonInfo Crop Check is a summary of cotton crop information

gathered from consultants by each CottonInfo Regional Extension

Officer (REO) for their valley. This information is collected on a regular

basis to share with growers, researchers and other consultants. It

should be noted that the information is just a snap shot in time. It

does not claim to be a thorough report for each valley, just a summary

of comments received. Please call your local REO if you need further

clarification on any information in this report. Please call

0417226411 with any questions you may have pertaining to this

report.

Date 7th February 2020

Lower Namoi

CROP STAGE

25 nodes

5 – 6 NAWF

Cut out next week

22 FB

Youngest cotton has 14FB

4 – 6 NAWF in older and 6 – 8NAWF in younger cotton

Cut out GR applied to some fields with lower rates applied to younger fields

Water:

Bores have been turned off in some places

Rain helping where it has fallen

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Wee Waa Day Degrees

Base 12 accumulation DD1532 accumulation

Insect Pests/Beneficial’s:

One mirid spray done

Mirids at threshold in some areas

Mites increasing (will be sprayed with GR)

Whitefly numbers still low considering this point in the season

SLW increasing

Some nymphs are now present

Spraying mites and suppressing whitefly at this stage

Non-Bollgard

Heliothis pressure remains light

No survivors to date

No different to Bollgard fields in regards to other insects

Heliothis pressure has been light but continuous

Larvae getting entrenched in flowers etc

Insecticides performing well

Disease:

No vert noted yet

Only occasional vert affected plants noted

Vert showing up in known high inoculum fields

Comments

Cloud cover will be a concern over this period

Keeping an eye on fields for vert after this cooler and wetter period

Top 5 retentions in most cases high 80’ and 90’s

Top 5 retention taken a bit of a dip around 80’s

Upper Namoi

Crop Stage:

23 – 28 nodes

0 – 8 NAWF

21 – 26 nodes

75% crops cut out this week

Water:

Water budgets hugely variable

Rainfall also variable

Insect Pests/Beneficial’s:

Good beneficial levels

Pest mirris ongoing activity with some area’s worse than others

Mites through most cotton regardless of proximity to corn

Some mites treated, others left to thrips

Levels of Whitefly seem to be holding and decreasing where releases have been done

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Gunnedah Day Degrees

Base 12 accumulation DD1532 accumulation

Low to moderate SLW nymphs notes (continue to monitor)

All crops have been sprayed with Transform (1-3mirids/m)

SLW building steadily

Admiral spray once this change clears

Some cracked bolls from stress

Disease:

Have seen some sudden wilt in one field

Vert coming into some fields following cooler weather

Low level desiccated leaves

Comments:

Low amounts of bottom fruit in some places (environmental)

Retentions 80 – 95 %

Heavy shed and older cavitation following head and overcast weather

Also some shed cause by extensive mirid stinging and neonate damage to small bolls 3-7days old.

Despite some hard conditions boll size and numbers seem to be holding up

Most crops had cut-out rates of GR

Crops with anything from 1 meg to 4 megs left

Watering average 0.8ML/ha

The CottonInfo Bug Check is a summary of cotton crop information gathered from consultants by each CottonInfo

Regional Extension Officer (REO) for their valley. This information is collected on a regular basis to share with growers,

researchers and other consultants. It should be noted that the information is just a snapshot in time. It does not claim to

be a thorough report for each valley, just a summary of comments received.

DATE – Thursday 6th February 2020

CROP STAGE – 21-26 nodes. Range of NAWF from 4 -7.5. Retention range from 68% to 90 %. Late crops not at

row closure.

INSECTS/BENEFICALS – Good predator numbers. Mirids at threshold have been sprayed. Low mites and SLWF

in some fields. Light helicoverpa pressure. Some fields have had no insecticides.

WEEDS - Late Barnyard grass in some fields. Generally, very clean.

DISEASE/ENVIRONMENTAL – Alternaria present in many fields, worse on repeat ground. Some shedding and

cavitation. Low radiation is a concern next week.

GENERAL COMMENTS – Crops have good fruit load. Bolls filling well in last two weeks. Some growers will be at

least one water short for mid- March irrigation.

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EarlyOct

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Solar radiation MJ/m2

Griffith Solar Radiation MJ/m2 Last ten year average

Griffith Solar Radiation MJ/m2 2019-20

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b

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ar

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Crop Water use ML/ha 2019/20

Ten year ave ML/ha Actual 2019/20 ML/ha

The CottonInfo Bug Check is a summary of cotton crop information gathered from consultants by each CottonInfo Regional

Extension Officer (REO) for their valley. This information is collected on a regular basis to share with growers, researchers and

other consultants. It should be noted that the information is just a snap shot in time. It does not claim to be a thorough report

for each valley, just a summary of comments received