Department of Plant Pathology, S.V. Agricultural College, Tirupati, Andhra Pradesh, India Agricultural Research Station, Kadiri, India
* E-mail: reddi_kumar01@yahoo.com
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Seven isolates of Paecilomyces lilacinus were isolated from the rhizosphere of nematode infested vegetable fields in Andhra Pradesh. Culture filtrates of all 7 isolates of P. lilacinus showed toxic effect against M. incognita at varying degrees. Percentage mortality and hatching inhibition of M. incognita were directly proportional to the concentration of culture filtrates and exposure period to each filtrate. Rate of mortality was low in the first 24 h but it appreciably increased with the increase in exposure period. Similarly, different dilutions of fungal filtrates of all the isolates were hatch inhibitory to a varying degree. Isolate PIT3 was found to be more effective among all isolates in both mortality and hatching inhibition. There was a relative decrease in the larval emergence with the corresponding increase in the concentration of culture filtrates.
Paecilomyces lilacinus, mortality, hatching inhibition, culture filtrate, Meloidogyne incognita
