Atilla Integrated pear psylla control
Atilla New pear psylla product Contact agent 85 % potassium bicarbonate (KHCO 3 ) = 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 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 Assessment Number of young larvae (L1-L3) on shoots
Formulation GEP trial - Belgium 2010 (Pcfruit) 140 Number L1-L3/10 shoots 120 100 80 60 40 20 0 8 DA-A 12 DA-B 8 DA-C 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
Triple action Reduces egg deposit Insecticidal on larvae Reduces black pears
Repellent effect GEP trial - Spain 2010 (Anadiag Ibérica) Pear cv. Conference Objects 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 Assessments Number of eggs (total) on shoots Number of young larvae (L1-L3) on shoots
Repellent effect GEP trial - Spain 2010 (Anadiag Ibérica) 35 Number of eggs/10 shoots 30 25 20 15 10 5 0 Untreated inside trial Untreated 10 m outside Vertimec Atilla 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) 70 Number L1-L3/10 shoots 60 50 40 30 20 10 0 Untreated inside trial Untreated 10 m outside Vertimec Atilla 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 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 Assessment Number of eggs (total) on shoots
Repellent effect GEP trial - Italy 2012 (Ferrara - Anadiag Italia) Product Efficacy on eggs (%) 10 DA-D Untreated - Vertimec Atilla 3,5 kg/ha Atilla 7,0 kg/ha 10 b 81 a 93 a Significant reduction of new egg deposit
Repellent effect GEP trial - Belgium 2010 (Pcfruit) Pear cv. Conference Objects Product Rate Application Untreated - - Calypso 0,375 L/ha 01/10 Atilla 5,0 kg/ha 01/10-08/10-15/10 Assessment Number of eggs (total) on shoots
Repellent effect GEP trial - Belgium 2010 (Pcfruit) 350 Number of eggs/10 shoots 300 250 200 150 100 50 0 01/10 08/10 15/10 22/10 Untreated Calypso Atilla
Triple action Reduces egg deposit Insecticidal on larvae Reduces black pears
Insecticidal effect GEP trial - Italy 2012 (Ferrara - Anadiag Italia) Pear cv. Abate Fetel Objects 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 Assessments Number of young larvae (L1-L3) on shoots Number of old larvae (L4-L5) on shoots
Insecticidal effect GEP trial - Italy 2012 (Ferrara - Anadiag Italia) 20 Number L1-L3/10 shoots 18 16 14 12 10 8 6 4 2 0 24/07 31/07 07/08 14/08 Untreated Vertimec Atilla 3,5 kg/ha Atilla 7,0 kg/ha
Insecticidal effect GEP trial - Italy 2012 (Ferrara - Anadiag Italia) 9 Number L4-L5/10 shoots 8 7 6 5 4 3 2 1 0 24/07 31/07 07/08 14/08 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 Product Rate Application Untreated - - Vertimec 0,75 L/ha 04/07 Atilla 6,0 kg/ha 28/06-04/07-11/07 Assessment Number of larvae (L1-L5) on shoots Dessicated leaf area caused by Cacopsylla pyri
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 Untreated Vertimec Atilla Dessicated leaf area (0-10) 13 DA-C 2,8 a 0,3 b 0,3 b
Insecticidal effect GEP trial - Belgium 2010 (Pcfruit) Pear cv. Conference Objects Product Rate Application Untreated - - Calypso 0,375 L/ha 01/10 Atilla 5,0 kg/ha 01/10-08/10-15/10 Assessment Number of young larvae (L1-L3) on shoots Number of old larvae (L4-L5) on shoots
Insecticidal effect GEP trial - Belgium 2010 (Pcfruit) 140 Number L1-L3/10 shoots 120 100 80 60 40 20 0 01/10 08/10 15/10 22/10 Untreated Calypso Atilla
Insecticidal effect GEP trial - Belgium 2010 (Pcfruit) 250 Number L4-L5/10 shoots 200 150 100 50 0 01/10 08/10 15/10 22/10 Untreated Calypso Atilla
Triple action Reduces egg deposit Insecticidal on larvae Reduces black pears
Less black sooty mold GEP trial - Spain 2012 (Anadiag Ibérica) Pear cv. Conference Objects 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 Assessments Honeydew severity and incidence on fruits Black sooty mold severity and incidence on fruits
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 Product Rate Application Untreated - - Vertimec 0,75 L/ha 07/07 Atilla 5,0 kg/ha 30/06-07/07-14/07 Assessment Black sooty mold severity and incidence on fruits
Less black sooty mold GEP trial - Spain 2009 (Anadiag Ibérica) 90 Efficacy (%) 80 70 60 50 40 30 80 a 67 a 20 44 b 10 0 Black sooty mold severity 25 b Black sooty mold incidence 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 16 Number L1-L3/10 shoots 14 12 10 8 6 4 2 0 28/06 05/07 12/07 19/07 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 60 % leaves with larvae 50 40 30 20 10 0 Untreated 1 x 2 x 3 x 4 x
Spray volume Belgium 2010 - Pear cv. Conference Atilla applied at 5,0 kg/ha 60 % leaves with larvae 50 40 30 20 10 0 Untreated 300 L/ha 700 L/ha 1000 L/ha
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/LR 50 ) = 1 Atilla poses low risk to non target arthropods
Safe for beneficials Orius laevigatus Typhlodromis pyri Aphidius rhopalosiphi
Safe for beneficials Forficula auricularia Anthocoris nemoralis Trombidium sp.
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 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 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 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 Kaolin, oil Traditional products + beneficials and/or Traditional products Source: pcfruit
Potassium fertilizer Atilla contains 40 % K 2 O 5,0 kg/ha Atilla = 2,0 kg/ha K 2 O ( 4,3 kg/ha KNO 3 ) 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
Key points 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
Integrated control of pear psylla & black pears