Biological characteristics and parasitization potential of Encarsia formosa Gahan (Hymenoptera: Aphelinidae) on the whitefly, Trialeurodes vaporariorum Westwood (Hemiptera: Aleyrodidae), a pest of greenhouse crops in north-western Indian Himalayas

Egyptian Journal of Biological Pest Control

Table 6 Size of E. formosa adults emerging from different parasitized nymphal instars of T. vaporariorum

Parasitoid adults emerged from parasitized whitefly instar	Body length (mm)	Head breadth (mm)
Parasitoid adults emerged from parasitized whitefly instar	Mean ± SE	Mean ± SE
II	0.674 ± 0.018	0.271 ± 0.001
III	0.672 ± 0.014	0.267 ± 0.009
IV	0.680 ± 0.015	0.277 ± 0.004
LSD_(P=0.05)	NS	NS
F_{2, 29}	0.46	3.31
P value	0.636	0.051