Effects of Insecticides on Populations of the vegetable leafminer and Associated Parasites on Fall Pole Tomatoes1
- 1 February 1980
- journal article
- research article
- Published by Oxford University Press (OUP) in Journal of Economic Entomology
- Vol. 73 (1) , 67-71
- https://doi.org/10.1093/jee/73.1.67
Abstract
Several insecticides that control lepidopterous pests were evaluated for their effects on populations of Liriomyza sativae Blanchard and associated parasites in fall plantings of fresh market tomatoes in southern California. All rates of methomyl tested caused increases in L. sativae densities and reduced populations of 2 of its principal larval parasites, Diglyphus begini (Ashmead) and Chrysonotomyia (Achrysocharella) punctiventris (Crawford). Chlorpyrifos gave excellent control of the leafminer, but decimated its parasite populations. Parasitization of L. sativae by the larval-pupal parasite, Chrysocharis parksi Crawford, was reduced ca. 40% in plots treated with methomyl at 0.5 kg AI/ha. Dipel® did not adversely affect either the vegetable leafminer or its parasites. No significant tomato fruit yield reductions occurred in methomyl-treated plants, although they had significantly more L. sativae mines than untreated plants.This publication has 1 reference indexed in Scilit:
- Effects of Insecticides on Populations of the Vegetable leafminer and Associated Parasites on Summer Pole Tomatoes1Journal of Economic Entomology, 1980