Survival of Immature Telenomus podisi (Hymenoptera: Scelionidae) and Rice Stink Bug (Hemiptera: Pentatomidae) Embryos After Field Applications of Methyl Parathion and Carbaryl

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Abstract:

Survival (percent emergence) of immature Telenomus podisi Ashmead and rice stink bug, Oebalus pugnax F., embryos after field applications of methyl parathion and carbaryl was detennined in split-split plot experiments. Two stages (2-3 d and 6-8 d old) of immature T. podisi were placed either 40 or 70 em above the water in the rice canopy. T. podisi immatures that were located near the top of the rice canopy had reduced survival compared with those placed at the lower canopy, regardless of age. Compared with immature T. podisi, rice stink bug embryos in the upper canopy were significantly more susceptible to the insecticides. Insecticides had no significant effect on immature T. podisi or stink bug eggs located in the lower canopy. Methyl parathion reduced survival of T. podisi immatures and rice stink bug embryos more than carbaryl.

Document Type: Research Article

Publication date: April 1, 1992

More about this publication?
  • Journal of Economic Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes articles on the economic significance of insects and is divided into the following sections: apiculture & social insects; arthropods in relation to plant disease; forum; insecticide resistance and resistance management; ecotoxicology; biological and microbial control; ecology and behavior; sampling and biostatistics; household and structural insects; medical entomology; molecular entomology; veterinary entomology; forest entomology; horticultural entomology; field and forage crops, and small grains; stored-product; commodity treatment and quarantine entomology; and plant resistance. In addition to research papers, Journal of Economic Entomology publishes Letters to the Editor, interpretive articles in a Forum section, Short Communications, Rapid Communications, and Book Reviews.
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