Table 4 Median lethal time (LT50) values of Steinernema carpocapsae (All strain) and S. feltiae (Filipjev), Heterorhabditis bacteriophora (HP88) and H. bacteriophora (Ar-4) against 3rd and 4th instar larvae of cabbageworm, Pieris rapae at a concentration of 50 IJs/larva
Used concentration | P.rapae instars | S.carpocapsae (All strain) | S. feltiae (Filipjev) | H.bacteriophora (HP88) | H.bacteriophora (Ar-4) |
|---|---|---|---|---|---|
LT50 (days) | |||||
50 IJs/larva | 3rd instar | 2.763 | – | – | 3.292 |
4th instar | – | 3.506 | – | 3.107 | |