Effect of Host Age on Development of Biosteres (= Opius) Longicaudatus, a Parasitoid of the Caribbean Fruit Fly, Anastrepha Suspensa
Abstract
Progeny of Biosteres (= Opius) longicaudatus Ashmead which began their development in 4 and 5-day-old Anastrepha suspensa (Loew) larvae at 24-27@*C and 65-70% RH emerged in 18-19 days. Parasitoids which developed from 6 and 7-day-old host larvae took 19-20 days and 22-23 days, respectively. Mean duration of pupal development was longest (7.5 @+ 0.1 days) in the oldest (7-day-old) larvae. Egg development of the parasitoid lasted 2 days in 4 and 5-day-old host larvae and 4.6 @+ 0.1 days in 7-day-old larvae. Percent parasitoid survival was highest in 5 and 6-day-old hosts and lowest in 7-day-old larvae. There was an indication of increased size of adult parasitoids with increased host age.Downloads
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