CAPACIDADE DE CONSUMO DE Chrysoperla externa (HAGEN, 1861) (NEUROPTERA: CHYSOPIDAE) EM DIFERENTES PRESAS
2006
Afonso Takao Murata | Antonio Cesar Caetano | Sergio Antonio de Bortoli | Carlos Henrique de Brito
The insects of the Chrysopidae family are very important for biological pest control. The present work had the objective of determine the consumption capacity of eggs of three moths species by Chrysoperla externa larvae, besides to verify the larvae-adult period viability, duration of the larval period, and the total mass (g) of consumed eggs. The experiment was accomplished in laboratory conditions, under controlled temperature (25 + 2 ºC), UR (75 + 10%) and photoperiod (14:00 H). Insects of the first generation (F1) were used, being three treatments with 30 replications, under DIC. The obtained results showed that the eggs of S. cerealella and A. kuehniella provided higher viability for the larvae-adult period of C. externa; the duration of the larval period of C. externa was smaller when the eggs of A. kuehniella were used as food; and the larvae of C. externa, preferentially consume the eggs of A. kuehniella, being the higher consumption in the third ínstar.
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