Anzeiger für Schädlingskunde, Pflanzenschutz, Umweltschutz (1994) 67, 117-119

M.M.A. El-Maghraby, M.A. El-Tantawy, E.A.A. Gomaa and M. Nada (1994)
Toxicity of some pesticides against the egg stage and the first larval instar of the chrysopid predator Chrysoperla carnea (Steph.)
Anzeiger für Schädlingskunde, Pflanzenschutz, Umweltschutz 67 (5), 117-119
Abstract: The toxicity of cypermethrin, deltamethrin, fenpropathrin, fenvalerate, methomyl and kelthane-s against the egg stage and the 1st larval instar of Chrysoperla carnea (Steph.) revealed that deltamethrin exhibited magnitude bad side effects against the eggs (LC₉₀=3.35 ppm) as compared with the safest compound kelthane-s (LC₉₀=144 ppm); the figures of the other tested toxicants ranged between 17.6 and 109.2 ppm.
It was found that the larval stage needed higher concentrations to achieve similar mortality percentages. LC₉₀ values ranged between 72.2 and 1,176 ppm. Ranking of toxicity was, however, similar to that of ovicidal action.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
resistance to pesticides

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
Chrysoperla carnea (predator)