At 72 h of incubation, the LC 50 values of Sc1, Sa1 and Hi1 strains were 1078, 16 IJs larva −1, respectively. abbasi (92%) at 10 days post treatment, whereas H. The highest larval mortality was observed with S. Oryctes rhinoceros larval susceptibility to EPN significantly varied with the treatment dose and period of exposure. carpocapsae (CPCRI-Sc1), virulence and reproductive capacity were evaluated against second instar larvae of O. Heterorhabditis indica (CPCRI-Hi1), Steinernema abbasi (CPCRI-Sa1), and S. Hence, indigenous entomopathogenic nematode (EPN) strains, viz. However, indiscriminate use of chemical insecticides has created a lot of environmental and regulatory issues, thus warranting an ecologically safe and environmental friendly alternative option. the larval stage, which is cryptic in nature and spends nearly 90–160 days in the breeding site, is amenable to any control measures so as to reduce the population of actual damaging adult stage. rhinoceros grubs and adults have different feeding habits as the adults feed on plant tissues, whereas the grubs primarily feed on rotting organic matter. The adult beetle attacks the unopened leaves and inflorescences, resulting in a yield loss of more than 10%. Many biotic and abiotic constrains limit global palm yield and among the biotic factors, the coconut rhinoceros beetle, Oryctes rhinoceros (L.) (Coleoptera: Scarabaeidae) is the major problem in India. India is the world's leading producer of coconuts.
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