ccrecommend02

Information about ccrecommend02

Published on January 24, 2008

Author: Quintilliano

Source: authorstream.com

Content

Slide1:  Expanded registrations of IGR and neonicotinoids: Applaud/Courier : cucurbits, cotton, lettuce Actara/Platinum: cotton, melons, leafy vegetables Assail: cotton, leafy vegetables 2) Multiple applications allowed by labels. 3) Risk of increased selection pressure on whiteflies 4) The necessity to sustain the efficacies of these valuable chemistries for whitefly control. Concerns for Whitefly Management in Multi-crop Communities Draft Guidelines for Cross-Commodity Management of Whiteflies in Arizona Slide2:  Arizona Cotton Growers Association Arizona Cotton Res & Prot Council Western Growers Association Arizona Veg Growers Association Yuma Veg Shippers Association Cotton Incorporated Arizona Department of Agriculture University of Arizona PCA’s Arizona Cross Commodity Working Group Objective: Harmonize and Sustain Effectiveness of Shared Chemistries While Managing Whiteflies Across Commodities. 1) Regional cropping systems 2) WF population dynamics Slide4:  Cotton-intensive Community cotton is the dominant WF host crop grown in a crop community. Maricopa Co. (e.g. Buckeye) Pinal Co. (e.g. Casa Grande) Pima Co. (e.g. Marana) Principal Treated WF Hosts by Community:  Principal Treated WF Hosts by Community Slide6:  General Whitefly Management Guidelines Avoidance Sampling Effective Chemical Use (1 IGR use / crop season) Slide7:  Cross-commodity Guidelines for Applaud/Courier Limit use to 1 application per crop season. 2) Restrict use to no more than 3 applications per year in a multi-crop community. 3) Do not expose multiple, sequential generations of whitefly to Applaud/Courier (or any WF chemistry). 4) Coordinate treatments of adjacent fields such that, when thresholds indicate the need for Applaud applications: they are made within 1 week (within the same whitefly generation), OR the interval between Applaud sprays is more than 4 weeks, or at least 2 whitefly generations. Slide8:  Apr May June July Aug Sep Oct Nov Spring Melons Fall Melons Cotton Multi-crop Community Spring Melons Fall Melons Cotton Slide9:  Applaud® in Yuma – Potential Label Max Use Spring Melons Fall Melons Cotton Slide10:  Applaud® in Yuma – Recommended Use Spring Melons Fall Melons Cotton Slide11:  Central Arizona - Multi crop (Potential Label Max) Spring Melons Fall Melons Cotton Slide12:  Spring Melons Fall Melons Cotton Central Arizona - Multi crop (Recommended Use) Slide13:  Cotton: Do not apply neonicotinoids. (Centric/Actara, Provado/Leverage, Assail). Cross-commodity Guidelines for Neonicotinoids Melons /Vegetables : Do not apply a foliar neonicotinoid spray following the use of a soil application of Admire or Platinum. Soil or foliar neonicotinoids should not be applied during the following periods: Yuma: After April 1 or before Aug 1 Aguila: Before May 1 or After Sept 1 Consider foliar alternatives for vegetables that are planted after WF movement subsides and harvested before aphids typically become abundant. (eg, Oct 7th ~ Nov 7th in Yuma Valley) A single neonicotinoid use (soil or foliar) per crop 1) Multi-crop Communities Draft Proposal Slide14:  Neonicotinoid Resistance Risks Associated with Shared Neonicotinoid Uses in a Multi-Crop Community (eg., Yuma – current usage) Slide15:  Melons Vegetables Neonicotinoid Resistance Risks Associated with Shared Neonicotinoid Uses in a Multi-Crop Community (eg., Yuma – current usage) Slide16:  Melons Vegetables Cotton Neonicotinoid Resistance Risks Associated with Shared Neonicotinoid Uses in a Multi-Crop Community Not Sustainable (eg., Yuma – potential usage) Slide17:  Melons Preserve a Neonicotinoid-free Period in Multi-Crop Communities Vegetables Cotton Neonicotinoid (e.g., Yuma-Recommended) IGRs and Conventional Slide18:  Cotton–intensive community Cross-commodity Guidelines for Neonicotinoids No more than 2 neonicotinoid uses per cotton crop (soil, foliar or seed treatment) Sprays should only be used following an initial IGR applications (Stage II of Whitefly IPM Program) Sprays should not to be applied consecutively, but rotated with conventional chemistries (Stage II or III) Draft Proposal Slide19:  Resistance Risks Associated with Neonicotinoid Uses in a Cotton-intensive Community Cotton Neonicotinoid (e.g., Buckeye-label max) Slide20:  Resistance Risks Associated with Neonicotinoid Uses in a Cotton-intensive Community AZ Whitefly IPM Program Cotton I IGRs II Neo III Pyr (e.g., Buckeye-recommended use ) Slide21:  Resistance Risks Associated with Neonicotinoid Uses in a Cotton-Melon System (central Arizona- potential use) Melons Cotton Slide22:  Resistance Risks Associated with Neonicotinoid Uses in a Cotton-Melon System (central Arizona-recommended use) Melons Cotton IGR Pyrethroid I IGRs II Neo III Pyr Slide23:  Label 2 uses per crop 2-4 uses per crop Applaud/ Courier Assail, Actara, Adage, Provado, Leverage Proposed CC Guidelines 1 use / crop, narrowed use window No use on Cotton in MCC Limit use in Veg / Melon No more than 2 non-consecutive uses in cotton intensive communities, and only after Stage I - IGR

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