Atilla Integrated pear psylla control

Atilla

New pear psylla product Contact agent

85 % potassium bicarbonate (KHCO3)

= baking powder

Especially formulated for efficacy against Pear Psylla

Dose : 5 kg/ha (= 3,3 kg/ha leaf wall area)

Block treatment : 3-4 times per generation

In summer and after harvest

Formulation

The formulation determines the efficacy of bicarbonate

solubility

pH

contact

honeydew

Other formulation than fungicidal products !

Formulation

Formulation

GEP trial - Belgium 2010 (Pcfruit)

Pear cv. Conference

Objects

Assessment Number of young larvae (L1-L3) on shoots

Product Rate (kg/ha a.s.) Application

Untreated - -

Potassium bicarbonate (99,5 %) 4,0 10/06 - 18/06 - 01/07

Atilla 3,0 10/06 - 18/06 - 01/07

Formulation

GEP trial - Belgium 2010 (Pcfruit)

0

20

40

60

80

100

120

140

8 DA-A 12 DA-B 8 DA-C

Number L1-L3/10 shoots

Untreated K-bicarbonate 4,0 kg/ha a.s. Atilla 3,0 kg/ha a.s.

Triple action

Reduces egg deposit

Insecticidal on larvae

Reduces black pears

Reduces egg deposit

Insecticidal on larvae

Reduces black pears

Triple action

Repellent effect

GEP trial - Spain 2010 (Anadiag Ibérica)

Pear cv. Conference

Objects

Assessments Number of eggs (total) on shoots

Number of young larvae (L1-L3) on shoots

Product Rate Application

Untreated inside trial - -

Untreated 10 m outside trial - -

Vertimec 0,75 L/ha 16/07

Atilla 3,5 kg/ha 16/07 - 23/07 - 30/07 - 06/08

Repellent effect

GEP trial - Spain 2010 (Anadiag Ibérica)

0

5

10

15

20

25

30

35

Untreated inside trial Untreated 10 m outside Vertimec Atilla

Number of eggs/10 shoots

O DA-A 7 DA-A 7 DA-B 7 DA-C 3 DA-D 10 DA-D

Repellent effect

GEP trial - Spain 2010 (Anadiag Ibérica)

0

10

20

30

40

50

60

70

Untreated inside trial Untreated 10 m outside Vertimec Atilla

Number L1-L3/10 shoots

O DA-A 7 DA-A 7 DA-B 7 DA-C 3 DA-D 10 DA-D

Repellent effect

GEP trial - Italy 2012 (Ferrara - Anadiag Italia)

Pear cv. Abate Fetel

Objects

Assessment Number of eggs (total) on shoots

Product Rate Application

Untreated - -

Vertimec 0,75 L/ha 31/07

Atilla 3,5 kg/ha 24/07 - 31/07 - 07/08 - 14/08

Atilla 7,0 kg/ha 24/07 - 31/07 - 07/08 - 14/08

Repellent effect

GEP trial - Italy 2012 (Ferrara - Anadiag Italia)

Product Efficacy on eggs (%)

10 DA-D

Untreated -

Vertimec 10 b

Atilla 3,5 kg/ha 81 a

Atilla 7,0 kg/ha 93 a

Significant reduction of new egg deposit

Repellent effect

GEP trial - Belgium 2010 (Pcfruit)

Pear cv. Conference

Objects

Assessment Number of eggs (total) on shoots

Product Rate Application

Untreated - -

Calypso 0,375 L/ha 01/10

Atilla 5,0 kg/ha 01/10 - 08/10 - 15/10

Repellent effect

GEP trial - Belgium 2010 (Pcfruit)

0

50

100

150

200

250

300

350

01/10 08/10 15/10 22/10

Number of eggs/10 shoots

Untreated Calypso Atilla

Reduces egg deposit

Insecticidal on larvae

Reduces black pears

Triple action

Insecticidal effect

GEP trial - Italy 2012 (Ferrara - Anadiag Italia)

Pear cv. Abate Fetel

Objects

Assessments Number of young larvae (L1-L3) on shoots

Number of old larvae (L4-L5) on shoots

Product Rate Application

Untreated - -

Vertimec 0,75 L/ha 31/07

Atilla 3,5 kg/ha 24/07 - 31/07 - 07/08 - 14/08

Atilla 7,0 kg/ha 24/07 - 31/07 - 07/08 - 14/08

Insecticidal effect

GEP trial - Italy 2012 (Ferrara - Anadiag Italia)

0

2

4

6

8

10

12

14

16

18

20

24/07 31/07 07/08 14/08

Number L1-L3/10 shoots

Untreated Vertimec Atilla 3,5 kg/ha Atilla 7,0 kg/ha

Insecticidal effect

GEP trial - Italy 2012 (Ferrara - Anadiag Italia)

0

1

2

3

4

5

6

7

8

9

24/07 31/07 07/08 14/08

Number L4-L5/10 shoots

Untreated Vertimec Atilla 3,5 kg/ha Atilla 7,0 kg/ha

Insecticidal effect

GEP trial - Italy 2009 (Ravenna - Anadiag Italia)

Pear cv. Passa Crassana

Objects

Assessment Number of larvae (L1-L5) on shoots

Dessicated leaf area caused by Cacopsylla pyri

Product Rate Application

Untreated - -

Vertimec 0,75 L/ha 04/07

Atilla 6,0 kg/ha 28/06 - 04/07 - 11/07

Insecticidal effect

GEP trial - Italy 2009 (Ravenna - Anadiag Italia)

Product

Efficacy on larvae (%) 7 DA-B

Efficacy on larvae (%) 13 DA-C

Untreated - -

Vertimec 83 a 98 a

Atilla 33 b 74 b

Product Dessicated leaf area (0-10)

13 DA-C

Untreated 2,8 a

Vertimec 0,3 b

Atilla 0,3 b

Insecticidal effect

GEP trial - Belgium 2010 (Pcfruit)

Pear cv. Conference

Objects

Assessment Number of young larvae (L1-L3) on shoots

Number of old larvae (L4-L5) on shoots

Product Rate Application

Untreated - -

Calypso 0,375 L/ha 01/10

Atilla 5,0 kg/ha 01/10 - 08/10 - 15/10

Insecticidal effect

GEP trial - Belgium 2010 (Pcfruit)

0

20

40

60

80

100

120

140

01/10 08/10 15/10 22/10

Number L1-L3/10 shoots

Untreated Calypso Atilla

Insecticidal effect

GEP trial - Belgium 2010 (Pcfruit)

0

50

100

150

200

250

01/10 08/10 15/10 22/10

Number L4-L5/10 shoots

Untreated Calypso Atilla

Reduces egg deposit

Insecticidal on larvae

Reduces black pears

Triple action

Less black sooty mold

GEP trial - Spain 2012 (Anadiag Ibérica)

Pear cv. Conference

Objects

Assessments Honeydew severity and incidence on fruits

Black sooty mold severity and incidence on fruits

Product Rate Application

Untreated - -

Vertimec 0,75 L/ha 11/07

Atilla 3,5 kg/ha 11/07 - 18/07 - 25/07 - 01/08

Atilla 7,0 kg/ha 11/07 - 18/07 - 25/07 - 01/08

Less black sooty mold

GEP trial - Spain 2012 (Anadiag Ibérica)

Product

Efficacy on honeydew severity (%) - 8 DA-D

Efficacy on honeydew incidence (%) - 15 DA-D

Untreated - -

Vertimec 30 a 29 a

Atilla 3,5 kg/ha 48 a 46 a

Atilla 7,0 kg/ha 64 a 56 a

Product Efficacy on black sooty mold

severity (%) - 8 DA-D Efficacy on black sooty mold

incidence (%) - 15 DA-D

Untreated - -

Vertimec 59 a 37 a

Atilla 3,5 kg/ha 68 a 44 a

Atilla 7,0 kg/ha 70 a 52 a

Less black sooty mold

GEP trial - Spain 2009 (Anadiag Ibérica)

Pear cv. Conference

Objects

Assessment Black sooty mold severity and incidence on fruits

Product Rate Application

Untreated - -

Vertimec 0,75 L/ha 07/07

Atilla 5,0 kg/ha 30/06 - 07/07 - 14/07

Less black sooty mold

GEP trial - Spain 2009 (Anadiag Ibérica)

44 b

25 b

80 a

67 a

0

10

20

30

40

50

60

70

80

90

Black sooty mold severity Black sooty mold incidence

Efficacy (%)

Vertimec Atilla

When to start ?

After growth has stopped

Before adults start deposing their eggs

In mixed populations, before too much honeydew has been formed

Ideal timing in case of mixed population

Too late to solve with Atilla alone

How to apply ?

Dose : 5 kg/ha (= 3,3 kg/ha LWA)

Block treatment : 3 to 4 times per generation

Good spraying technique → contact Amount of water depends on training system

No surfactant needed

Good coverage of the entire tree

Maximum : 7 kg/ha and 9 applications/year

Dose

Italy 2009 - Pear cv. Passa Crassana

Atilla applied on 28/06 - 04/07 - 11/07

0

2

4

6

8

10

12

14

16

28/06 05/07 12/07 19/07

Number L1-L3/10 shoots

Untreated Atilla 3,0 kg/ha Atilla 4,0 kg/ha Atilla 6,0 kg/ha

Block treatment

Belgium 2010 - Pear cv. Conference

Atilla applied at 5,0 kg/ha on 02/09 - 08/09 - 17/09 - 24/09

0

10

20

30

40

50

60

Untreated 1 x 2 x 3 x 4 x

% leaves with larvae

Spray volume

Belgium 2010 - Pear cv. Conference

Atilla applied at 5,0 kg/ha

0

10

20

30

40

50

60

Untreated 300 L/ha 700 L/ha 1000 L/ha

% leaves with larvae

When to apply ?

Highest insecticidal efficay under warm, dry conditions Desiccating on larvae

After heavy rain or during drizzle, followed by sunshine

Which interval ? About 7 days, depending on psylla development

Shorter under warm conditions

High psylla pressure => shorter interval

After the rain

Safe for beneficials

Lab studies registration dossier - CRA-Laboratoire d’Écotoxicologie (Gembloux, Belgium)

Trigger value of hazard quotient (HQ = PER/LR50) = 1

Atilla poses low risk to non target arthropods

Orius laevigatus

Typhlodromis pyri

Aphidius rhopalosiphi

Safe for beneficials

Forficula auricularia

Anthocoris nemoralis

Trombidium sp.

Safe for beneficials

Trial 1 (sum of 09/07, 12/07, 24/07, 30/07, 06/08 en 07/09)

Anthocoris Trombidium Spiders

Untreated 11 4 15

Atilla 17 6 12

Trial 2 (sum of 18/07, 25/07, 01/08, 04/09)

Anthocoris Trombidium Spiders

Untreated 18 7 12

Atilla 31 4 20

Safe for beneficials

Belgium 2012 - Pear cv. Conference

Atilla applied 6-8 times at 5,0 kg/ha, starting at the end of June till harvest

Beating samples: 10 x 10 beatings

Atilla aims at a reduction of the pear psylla-population

of about 80%

Atilla is completely safe for the natural enemies

of pear psylla

Along with the natural enemies Atilla keeps the pear psylla population

under control

Safe for beneficials

Safe for beneficials

High psylla pressure and few beneficials?

Atilla

Unsufficient efficacy when there is lots of

honeydew

Traditional products

Unsufficient efficacy when the population is

heterogeneous

Atilla as the ideal partner of

traditional products

No MRL

Traditional

products

and/or

Traditional products + beneficials

Source: pcfruit

Kaolin, oil

Potassium fertilizer

Atilla contains 40 % K2O

5,0 kg/ha Atilla = 2,0 kg/ha K2O ( 4,3 kg/ha KNO3)

Higher K-content in the fruits → fruit quality

No negative effect on Ca-content

Belgium 2012 - Pear cv. Conference

Atilla applied at 5,0 kg/ha, 6 x from the end of July till harvest

Mineral analysis of fruits at harvest

mg/100 g fresh weight % DM K Ca Mg

Untreated 13,9 138,4 7,5 6,4

Atilla 13,7 153,6 7,8 6,9

Tank mixes

Good mixability, except with products that

strongly acidify the spraying solution

Aliette

Regalis Plus

Foliar Ca-fertilizers → Ca-EDTA and Ca-carbonate OK

MAP, MKP

Strong features

1. Different pear psylla stages + black sooty mold

2. No negative effect on beneficials

3. No residue

4. Potassium fertilizer

5. Works differently from other products

Use in summer and after harvest

Start when Psylla pressure is low

Block treatments (3-4/generation)

Interval ± 1 week

5 kg/ha, max. 9 applications/year

Good spraying technique

Key points

Integrated control of pear psylla & black pears