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Storage studies of Anaphes iole Girault (Hymenoptera: Mymaridae) at different developmental stages, temperatures and light-dark regimes
Khalid Abdullah
; Agriculture Research Institute, Dera Ismail Khan 29020, NWFP Pakistan
Joe J. Ellington
; Department of Entomology, Plant Pathology and Weed Sciences, New Mexico State University, Las Cruces NM, USA 88003
Sumbal Yasmin
; Agriculture Research Institute, Dera Ismail Khan 29020, NWFP Pakistan
Sažetak
A series of experiments were conducted to study the storage life of Anaphes iole Girault (Hymenoptera: Mymaridae) parasitizing eggs of lygus bug Lygus hesperus Knight at different developmental stages, temperatures and photoperiods. Lygus eggs, parasitized by Anaphes iole were held for one, three, six and nine days and were stored at 10 and 4 ºC, and two photoperiods (complete darkness and 09:15 (L:D)) for 20, 40, 60, and 80 days. The highest adult emergence resulted from parasitized lygus eggs held for six days at 29 ºC and then stored for 40, 60 and 80 days. Adult emergence was better when eggs were stored at 10 ºC than at 4 ºC. Complete darkness gave better adult emergence than 9:15 (L:D) photoperiod. When six-day old parasitized lygus eggs were stored in complete darkness at 10 ºC for 20, 40, 60 and 80 days there were 62.90, 42.50, 29.60 and 8.35% emergence respectively. Significantly lower number of adult A. iole emerged from lygus eggs parasitized by A. iole then held for one, three and nine days after parasitization at 29 ºC then stored at 4 °C, 9:15 (L:D) photoperiod, than from eggs parasitized and held for six days at 29 ºC and then stored in complete darkness at 10 ºC.
Ključne riječi
Anaphes iole; Lygus; storage; photoperiod; temperature; developmental stages; parasitiod
Hrčak ID:
48522
URI
Datum izdavanja:
21.12.2009.
Posjeta: 784 *