Insect + Mite Management Updates - Almond Board of California PDF
Preview Insect + Mite Management Updates - Almond Board of California
Insect + Mite Management Updates Bob Curtis, Moderator Thank you Silver Sponsor Insect + Mite Management Updates Presenters: David Haviland, UCCE Kern County Frank Zalom, Entomology, UC Davis Franz Niederholzer, UCCE Sutter/Yuba Counties Gabriele Ludwig, ABC Arthropod IPM Opportunities David Haviland, UC Cooperative Extension, Kern County Arthropod IPM Opportunities Alice: Would you tell me, please, which way I ought to go from here? Cheshire Cat: That depends a good deal on where you want to get to. Alice: I don‟t much care where. Cheshire Cat: Then it doesn‟t much matter which way you go. “Alice’s Adventures in Wonderland” Lewis Carol, 1866 Arthropod IPM Opportunities Where do you want to go? Healthy, nutritious, flavorful, affordable almonds Minimal insect damage Minimal management costs • Monitoring and decision-making • Costs of mitigation practices Minimal pesticide use Negligible risk to air/water quality Negligible risk to field workers Negligible risk to consumers 10 years ago Currently Navel Orangeworm Sanitation, early harvest, Sanitation, early harvest, hard- hard-shelled varieties shelled varieties IGRs, Diamides, Spinosyns Guthion-based systems New generation pyrethroids Old generation pyrethroids Mating Disruption Spider Mites Preventative systems based Threshold-based systems based on Agri-mek on abamectin and growth Follow-up defoliation regulators prevention with Omite, Follow-up as needed with Zeal, Vendex, Nexter Envidor, Fujimite, Acramite 10 years ago Currently Peach Twig Borer Dormant oil, plus OPs, Dormant oil plus… carbamates, or pyrethroids IGRs, diamides, spinosyns as well Bloom/May sprays as as broad spectrum products needed (broad spec.) Bloom/May sprays San Jose Scale Dormant oil Dormant oil, plus OPs, carbamates, or pyrethroids Heavy reliance on parasitoids Low to moderate reliance on Growth regulators if needed every parasitoids 2-3 years or longer Arthropod IPM Opportunities Balanced Almond Orchard‟s Possible PTB- dormant oil + reduced-risk insecticides NOW- sanitation, early harvest, hard shell varieties, reduced-risk insecticides, mating disruption San Jose Scale- parasitoids, dormant oil, reduced-risk growth regulator every few years Mites- scouting and treatments as needed Ants- reduced-risk bait programs Arthropod IPM Opportunities? Why so many opportunities/tools? • Long history of industry investment in research • History of collaboration between almond producers, University and USDA researchers, manufacturers and regulatory agencies. • Grower willingness to adopt new practice • Lack of new exotic pests • Lack of treatment requirements for export
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