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Weed Control And Watermelon Tolerance To SANDEA
| Date post: | 15-Jan-2016 |
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Weed Control And Watermelon Tolerance
To SANDEA
Herbicides Labeled for Watermelons
1. Gramoxone,Boa (paraquat)…..…Preplant,
Row Middles
2. Roundup, others (glyphosphate)…Preplant
3. Prefar (bensulide)……………PPI or PRE
4. Curbit (ethalfluralin)…………….…PRE
5. Command (clomazone)……………PRE
6. Alanap (napthalam)………PRE or POST
7. Poast (sethoxydim)…………………POST
8. Treflan HFP (trifluralin)…..Row Middles
Watermelon Trials, Cordele, GA
Vidalia, GA Attapulgus, GA
Non-treated Control Sandea (0.5 oz/A) PRE
Non-treated Control Sandea (0.5 oz/A) POST
2-leaf watermelon
2” Palmer Amaranth
non-treated Sandea 2/3 oz + Curbit 1.5 pt
Crop Injury??
Herbicide Injury RatingsSandea… Pre
0
10
20
30
40
50
60
70
80
% In
jury
April 23 April 27 May 9 May 23 June 18
0.5 oz0.75 oz1.0 ozCheck
Herbicide Injury RatingsSandea… Post (1-2 Leaves)
0
10
20
30
40
50
60
70
80
% In
jury
May 9 May 23 May 29 June 18
0.5 oz0.75 oz1.0 ozCheck
Herbicide Injury RatingsSandea… Post (12-15” Runners)
0
10
20
30
40
50
60
70
80
% In
jury
May 23 May 29 June 18
0.5 oz0.75 oz1.0 ozCheck
Sandea 0.75 oz Post
Untreated
Sandea 0.75 oz/acre Post
Sandea 0.75 oz/acre Post
Sandea 0.75 oz/acre Post
Sandea POST to Watermelon with 12” Runner
Sandea 0.75 oz/acre Late Post
Nontreated Sandea (0.5 oz/acre)
Watermelon farm in Crisp County, May 2000. Treatment at 1-leaf. Pictures to scale.
Sandea (0.5 oz/A) PRE Sandea (0.5 oz/A) POST
2-leaf watermelon
Effects on Yield
Yield DataSandea… 0.5 Oz/acre
0
50
100
150
200
250
lbs
/plo
t
Pre 1-2 leaf 12" runners Check
July 9 July 16 July 23Total
Yield DataSandea… 0.75 Oz/acre
0
50
100
150
200
250
lbs
/plo
t
Pre 1-2 leaf 12" runners Check
July 9
July 16
July 23
Total
Yield DataSandea… 1.0 Oz/acre
0
50
100
150
200
250
lbs
/plo
t
Pre 1-2 leaf 12" runners Check
July 9 July 16 July 23Total
Melon SizeSandea…0.5 Oz/acre
020406080
100120140160180200
lbs
/plo
t
Pre 1-2 Leaf 12" Runners Check
< 20 lb 20-30 lb
Melon SizeSandea…0.75 Oz/acre
020406080
100120140160180200
lbs
/plo
t
Pre 1-2 Leaf 12" Runners Check
< 20 lb 20-30 lb
Melon SizeSandea…1.0 Oz/acre
020406080
100120140160180200
lbs
/plo
t
Pre 1-2 Leaf 12" Runners Check
< 20 lb 20-30 lb
Conclusions1. Curbit is a useful tool in the control of
nutsedge and pigweeds.
Conclusions1. Curbit is a useful tool in the control of
nutsedge and pigweeds.
2. Do not allow Sandea to contact foliage.
Conclusions1. Curbit is a useful tool in the control of
nutsedge and pigweeds.
2. Do not allow Sandea to contact foliage.
3. Sandea PRE may slightly delay maturity.
Conclusions1. Curbit is a useful tool in the control of
nutsedge and pigweeds.
2. Do not allow Sandea to contact foliage.
3. Sandea PRE may slightly delay maturity.
4. Need label for Sandea PRE and
row middles.
Conclusions1. Curbit is a useful tool in the control of
nutsedge and pigweeds.
2. Do not allow Sandea to contact foliage.
3. Sandea PRE may slightly delay maturity.
4. Need label for Sandea PRE and
row middles.
5. Need additional research in
plasticulture systems.
![taff update report: paraquat herbicides reassessment ......Gramoxone 250 Flash Herbicide Parable HSR000828 6.1A (overall): [6.1A (inhalation), 6.1E (dermal), 6.1C (oral)] 6.3A, 6.4A,](https://static.documents.pub/doc/80x56/5ffed245cb09884024027f15/taff-update-report-paraquat-herbicides-reassessment-gramoxone-250-flash.jpg)
