Outline of Biological Effects, Fecundity, Eclosion and Lifespan on Adult Tropical Warehouse Moth, Cadra cautella (Lepidoptera: Pyralidae) by using Sex Ratio

Abstract

Tropical warehouse moth Cadra cautella Walker, 1863 (Lepidoptera: Pyralidae) is a major pest of stored food products worldwide. It was originated from the tropics and subtropics but it disperses through imported food cargoes. The biological performance, fecundity, eclosion (emergence of larvae from egg or adult from pupae) and lifespan of adult Tropical warehouse moth at different sex ratio (female: male) was studied under constant conditions. Fecundity and eclosion of larvae was investigated by fi ve treatments: sex ratio (1F:1M, 2M, and 3M), (1M: 2F, 3F) and one more treatment of separated male and female as a control for lifespan. Eclosion of adult was measured by collecting 350 pupae in different aged 200 male and 150 female. 1M: 3F treatment have the highest number of eggs and the least percentage of hatching to larvae and 2M: 1F and 3M: 1F treatments non-signifi cantly behaved between them having the least number of total eggs and the maximum number at total eggs per female, in both have a larger percentage of hatching to larvae respectively. Lifespan of male was signifi cant with all treatments except 1M: 3F and lifespan of female was non-signifi cant with all treatments. Eclosion of adults calculated as three levels of normal, abnormal and not emerged; for female 42% normal, 5% abnormal, 53% not emerged out of 150 pupae and for male 20% normal, 10% abnormal 70% not emerged out of 200 pupae, was observed.

Embryonic Development and Eclosion Season of New Species <i>Berastagia</i> (Lepidoptera: Pyralidae) from Taiwan

“…The embryonic development The potential fecundity of the snout moth (259 eggs per female) in this study was comparable to that of the spinach moth, Hymenia recurvalis (250 eggs per female) [13]. The eclosion rate of the snout moth B. tainanica was higher than that of the tropical warehouse moth Cadra cautella, and the lifespan of the adult snout moth was longer than that of the tropical warehouse moth [14].…”

Diversity of insect pests of common bean and pigeon pea in the Republic of Congo revealed by DNA barcoding

“…It also feeds on dried fruits, beans, nuts, bananas, groundnuts, dried cocoa, and coconut. Infestation usually occurs after the harvest (Khan and Noor 2015). The larva spoils the food by its feeding activity and the production of large quantities of silk.…”