Genetic improvement of some microorganisms to increase the effect of bio-control on the potato tuber moth, Phthorimaea operculella (Zeller) (Lepidoptera: Gelechiidae)

Egyptian Journal of Biological Pest Control

Table 3 Effect of different fusants of the first protoplast (Bt::Bs1) on a biological feature of the Phthorimaea operculella

Replicates		Mortality (%) of larval instars					Mean of larval penetration (%)	Mean of pupal malformation	Mean of adult malformation
Replicates		R1	R2	R3	R4	Mean (%)	Mean of larval penetration (%)	Mean of pupal malformation	Mean of adult malformation
Parental and fusant strains
Parental strains	Bt	20	40	20	40	30	75	15	45
Parental strains	Bs1	0.0	0.0	0.0	0.0	0.0	83	45	35
Fusants time	Fusants products
40 min	F1	60	80	80	80	75	42	13	8
40 min	F2	80	80	80	80	80	40	15	20
40 min	F3	40	60	40	80	55	65	20	25