Farmers in the Chittagong region are leaning towards a light trap method to kill harmful pests in their fields to increase crop production.
Agriculturists say the method is cheap, easy to apply, very effective and also environment-friendly.
To trap harmful pests, farmers have to place a pot filled with a mixture of water and detergent under a source of light. Drawn towards the reflection of the light in the pot, the insects fall into the water and consequently die.
According to the Department of Agricultural Extension (DAE), farmers in the Chittagong, Cox’s Bazar, Noakhali, Feni and Laxmipur districts under the Chittagong region obtained positive results using the light trap method. They have achieved 67% success in crop production last year.
According to agriculturists, the insect light trap is one of the very effective tools for pest management in organic agriculture as it traps insects of both sex and substantially minimizes their population.
Abul Hossan Talukder, additional director of the DAE (Chittagong region) said that they have taken various initiatives to popularize the method among farmers of the region.
“We are encouraging farmers to use the low-cost device to control pests in their fields, as it is very easy to use. It contributes to integrated pest control management. It has reduced indiscriminate use of pesticides to a great extent and also increased crop production.”
“Light traps are used in order to survey nocturnal moths. By tempting and killing one adult moth or insect, we can control around 300-400 insect progenies. By monitoring the light traps farmers will be able to know better what types of insects lurk in the field and whether or not they are at a controllable level. Once the insect population in the light traps crosses a certain limit the farmer can decide on the type of pest management they have to take use,” said the DAE official.