SELECTIVITY OF SOME INSECTICIDES AND ACARICIDES TO EGGS AND LARVAE OFCERAEOCHRYSA-CUBANA (HAGEN, 1861) (NEUROPTERA, CHRYSOPIDAE) IN LABORATORY

This work had the objective of evaluating the selectivity of some inse cticides and acaricides to eggs and larvae of Ceraeochrysa cubana in o rder to allow indications of their use under field conditions, where p opulations of this species occur. The treatments used, in ml/100 l of water, were as following: Fenpropathrin 300 CE (30 and 50), Fenitrothi on 500 CE (150), Fenvalerate 200 CE (50), Fenbutatin-oxid 500 SC (50), and one check treated with water. The treatments had five replication s, making a total of 50 eggs and 40 larvae. The number of hatching lar vae and mortality in each instar was evaluated. The results showed tha t all products tested did not have ovicide action. Fenitrothion had a very high level of toxicity to every larvae instars. Fenbutatin-oxid w as selective to all larvae stages.