Particle films for managing arthropod pests of apple.
A two-season study showed that a calendar-based spray program to manage arthropod pests with kaolin (60 g/liter) applied at the rate of 450 liters/ha was effective against European apple sawfly, Hoplocampa testudinea (Klug) (Hymenoptera: Tenthredinidae); white apple leafhopper, Typhlocyba pomaria McAtee (Homoptera: Cicadellidae); apple red bug, Lygidea mendax Reuter (Heteroptera: Miridae); pear plant bug, Lygocoris communis (Knight) (Heteroptera: Miridae); and the apple rust mite, Aculus schlechtendali (Nalepa) (Acari: Eriophyidae). Although it reduced Curculionidae damage, the level of damage was still too high. It had no effect on apple maggot, Rhagoletis pomonella (Walsh) (Diptera: Tephritidae); codling moth, Cydia pomonella (L.) (Lepidoptera: Tortricidae); and tarnished plant bug, Lygus lineolaris (Palisot de Beauvois) (Heteroptera: Miridae). Laboratory studies showed fewer gravid twospotted spider mites, Tetranychus urticae Koch (Acari: Tetranychidae), and fewer eggs laid by these females. The study also showed no effect of kaolin on Neoseiulus fallacis (Garman) (Acari: Phytoseiidae).
Bostanian
N J
NJ
Agriculture and Agri-Food Canada, 430 Gouin Boulevard, St. Jean-sur-Richelieu, Quebec, Canada. bostaniannj@agr.gc.ca
Racette
G
G
D000818:Animals; D001181:Arthropods / Q000187:drug effects / Q000254:growth & development / Q000502:physiology; D005260:Female; D007300:Insect Control / Q000379:methods*; D007616:Kaolin / Q000494:pharmacology*; D007814:Larva / Q000187:drug effects / Q000254:growth & development; D027845:Malus / Q000469:parasitology*; D010058:Oviposition / Q000187:drug effects* / Q000502:physiology
D007616:Kaolin