Integrated Pest Management Program Department of Plant Science and Landscape Architecture UConn Extension

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1 Integrated Pest Management Program Department of Plant Science and Landscape Arcitecture UConn Extension Rainfastness of Insectides: June 21, 2015 Mary Concklin, Visiting Associate Extension Educator - Fruit Production & IPM You may be wondering after te rain tis weekend weter your applation is still working. Dr, Jon Wise at Migan State University as developed te following carts for tree fruit and berries w sould be elpful as you decide weter a re-applation is needed before you ad originally planned. Based on results from current studies, te following carts ave been developed to serve as a guide for general rainfastness caracterists and re-applation recommendations for certain insect pests (also printed in te 2015 Migan Fruit Management Guide, E0154). Note tat tese recommendations sould not supersede label restrtions or farm-level knowledge based on site-specif pest scouting, but rater are meant to compliment a compreensive pest management decision-making process. Rainfastness rating cart: General caracterists for cemal classes Insectide class Organopospat es Pyretroids Carbamates IGRs Oxadiazines Neonotinoids Rainfastness 0.5 inc Rainfastness 1 inc Rainfastness 2 inc Fruit Leaves Fruit Leaves Fruit Leaves Low Low Low Low Hig,Systemi c Spinosyns Hig Hig Hig Low Diamides Hig Hig Hig Low Avermectins Hig,Systemi c Low Low Higly rainfast = 30% was-off ly rainfast = 50% was-off Low rainfast = 70% was-off System = System s remain witin plant tissue

2 Apple precipitation was-off re-applation decision cart - codling mot Insectides Asana Calypso Proclaim Rimon Delegate Altacor Belt Rainfall = 0.5 inc Rainfall = 1 inc Rainfall = 2 inces Expected codling mot control in apples, based on eac compound s inerent toxity to codling mot larvae, maximum residual, and was-off potential from rainfall. * Number of days after applation tat te precipitation event occurred. = remains to provide signifant activity on te target pest, and tus re-applation is recommended. = remaining to provide signifant activity on te target

3 Grape precipitation was-off re-applation decision cart - Japanese beetles Insectides Sevin Brigade Actara Avaunt Rainfall = 0.5 inc Rainfall = 1 inc Rainfall = 2 inces Expected Japanese beetle control in jue grapes, based on eac compound s inerent toxity to Japanese beetle adults, maximum residual, and was-off potential from rainfall. * Number of days after applation tat te precipitation event occurred. = remains to provide signifant activity on te target pest, and tus re-applation is recommended. = remaining to provide signifant activity on te target Blueberry precipitation was-off re-applation decision cart - cranberry fruitworm Insectides Asana Intrepid Rainfall = 0.5 inc Rainfall = 1 inc Rainfall = 2 inces

4 Delegate Expected cranberry fruitworm control in blueberries, based on eac compound s inerent toxity to cranberry fruitworm larvae, maximum residual and was-off potential from rainfall. * Number of days after applation tat te precipitation event occurred. = remains to provide signifant activity on te target pest, and tus re-applation is recommended. = remaining to provide signifant activity on te target Blueberry precipitation was-off re-applation decision cart - Japanese beetles Insectides Mustang Max Sevin Provado Rainfall = 0.5 inc Rainfall = 1 inc Rainfall = 2 inces Expected Japanese beetle control in blueberries, based on eac compound s inerent toxity to Japanese beetle adults, maximum residual and was-off potential from rainfall. * Number of days after applation tat te precipitation event occurred. = remains to provide signifant activity on te target pest, and tus re-applation is recommended. = remaining to provide signifant activity on te target Blueberry precipitation was-off re-applation decision cart - spotted wing Drosopila Insectides Rainfall = 0.5 inc Rainfall = 1.0 inc Rainfall = 2.0 inces

5 Mustang Max Lannate Malation Delegate Expected spotted wing Drosopila control in blueberries, based on eac compound s inerent toxity to SWD, maximum residual, and was-off potential from rainfall. * Number of days after applation tat te precipitation event occurred. = remains to provide signifant activity on te target pest, and tus re-applation is recommended. = remaining to provide signifant activity on te target Insectide persistence, plant penetration, and rainfastness rating Compound class Persistence (residual on plant) Plant penetration caracterists Rainfast rating Organopospates Medium - Long Surface Low Carbamates Sort Cutle Penetration Pyretroids Sort Cutle Penetration - Hig Neonotinoids Medium Translaminar & Acropetal Oxadiazines Medium Cutle Penetration Avermectins Medium Translaminar IGRs Medium - Long Translaminar Spinosyns Sort - Medium Translaminar - Hig Diamides Medium - Long Translaminar - Hig Dr. Wise s work is funded in part by MSU s AgBioResearc. Te information in tis document is for educational purposes only. Te recommendations contained are based on te best available knowledge at te time of publation. Any reference to commercial products, trade or brand names is for information only, and no endorsement or approval is intended. UConn Extension does not guarantee or warrant te standard of any product referenced or imply approval of te product to te exclusion of oters w also may be available. Te University of Connectut, UConn Extension, College of Agrulture, Healt and Natural Resources is an equal opportunity program provider and employer.