Which is better pochonia chlamydosporia or paecilomyces lilacinus,?
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Answer:
Management of root-knot nematodes (Meloidogyne spp.) using fungi that
parasitize eggs and females has been gaining popularity as alternatives or
supplements to chemical nematicides. This study was conducted with the aim
of screening isolates of Pochonia chlamydosporia and Paecilomyces lilacinus
in managing root-knot nematodes. Efficacy of six isolates (10, 126, 144, 147,
177 and 392) of P chlamydosporia and two isolates (Pl-Rothamsted and PIplus
™) of P lilacinus was assessed in laboratory and greenhouse using tomato
as a test crop. Isolates 10 and 392 were significantly (P<O.OOI) more effective
in parasitizing nematode eggs compared to other isolates. A significant
(P<O.OOl) reduction, of up to 88%, in the numbers of second-stage juveniles
compared to the untreated control was achieved with PI-plus in sterilized and
non-sterilized soil and with isolate lOin non-sterilized soil. Shoot weight was
95% and 69 % higher in plants treated with isolates 392 and 10 respectively,
compared to the control in non-sterilized. Therefore, isolates 10 and 392 were
most effective at controlling root-knot nematodes compared to the other fungal
isolates. It can therefore be concluded that Pochonia chlamydosporia and
Paecilomyces lilacinus have the potential that can be exploited in the
management ofthe plant parasitic nematodes.
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