Articles
EFFECTIVE CONTROL OF ARMY WORM (SPODOPTORA LITURA) FOR STARFRUIT UNDER A NETTED STRUCTURE WITH NUCLEARPOLYHEDROSIS VIRUS (NPV)
Article number
873_37
Pages
321 – 324
Language
English
Abstract
Spodoptora litura or army worm is an important pest in protected cultivation of horticultural crops such as starfruit (Averrhoa carambola) and vegetables.
The effectiveness of NPV as a biological pesticide in controlling army worm attacking starfruit cultivated under a netted structure was tested and the recurrence of attack over an 8 year period was observed at a starfruit farm in MARDI, Serdang, Selangor, Malaysia.
Nuclearpolyhedrosis virus (NPV) was able to reduce damage of fruit from 99.5 to 15.8% after the first complete 8 applications of the NPV spraying program.
The damage was further reduced to 6.7 and 0.9% in the following fruiting seasons.
For effective control, spraying for NPV (8 weekly applications) must be started as soon as leaf damage is observed.
Recurrence of army worm attack on starfruit was very low, <1% during the 8 year observation period.
The effectiveness of NPV as a biological pesticide in controlling army worm attacking starfruit cultivated under a netted structure was tested and the recurrence of attack over an 8 year period was observed at a starfruit farm in MARDI, Serdang, Selangor, Malaysia.
Nuclearpolyhedrosis virus (NPV) was able to reduce damage of fruit from 99.5 to 15.8% after the first complete 8 applications of the NPV spraying program.
The damage was further reduced to 6.7 and 0.9% in the following fruiting seasons.
For effective control, spraying for NPV (8 weekly applications) must be started as soon as leaf damage is observed.
Recurrence of army worm attack on starfruit was very low, <1% during the 8 year observation period.
Publication
Authors
M. Zabedah, Z. Aini, A.K. Hussan
Keywords
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