Today is May 17, 2006


 

Management strategies for cotton flower weevil, Amorphoida lata Mothulsky

 

Solsoloy, David, Damo, Domingo, Julian, Cacayorin, and Bilgera (CoDA) packaged a management strategy for controlling flower weevil. The management strategy is a compilation of the different researches conducted by the Cotton Research and Development Institute now CoDA.

The strategy is a component of two different control methods namely: cultural/biological and chemical control. The components of the management strategy included the following:

  • Flower-to-flower dusting with ash plus burning of collected shed boils and flowers.
  • August or September planting to avoid the flower weevil occurrence during the peak of flowering.
  • Wider row spacing of plants preferably 1 m apart, to allow penetration of sunlight between rows to enhance rapid drying of fallen flowers.
  • Close-season planting to disrupt dispersal and prevent the generation cycle of the insect.
  • Planting of trap crops like okra.
  • Proper irrigation management to prevent population build up of the insect.
  • Release of earwig Euborella annulata, an insect predator of weevil.
  • Use of systemic chemical insecticide at the recommended rate.

This recommended management strategy effectively controls weevils and increases farmer’s income with an ROI of about 260% at high planting density.

The flower weevil management strategy reduced flower weevil infestation and provided better income to cotton farmers.

Source: PCARRD 2000. Highlights 1999, Los Banos, Laguna


Organic Farming Information Network
Philippine Council for Agriculture, Forestry and Natural Resources Research and Development (PCARRD)
©2006