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Biolep (WP)

Lepidoptera includes some of the most important pest species of agriculture worldwide. Failure to control some of these pests can have serious consequences on economics of food production. Although, a wide range of chemical pesticides have been developed for management of lepidopterous pests, search for alternative control agents is crucial with respect to the harmful effects of pesticides on environment, non-target organisms, and consumer health.

Biolep is a biological insecticide formulated based on the entomopathogenic bacterium, Bacillus thuringiensis subsp. kurstaki. The bacteria produce a crystal protein during sporulation that is specifically lethal to larval stage of Lepidoptera. Shortly after ingestion by the larvae, the protoxin is released following crystal dissolution and the toxin is activated in the gut environment, where it begins to break down the gut. Infected larvae become black and die within 24-72 hours after exposure. Biolep is an oral compound with no detrimental effect on non-target organisms, including natural enemies, pollinators, and human.

  • Biolep is a narrow-spectrum insecticide with no detrimental effects on non-target organisms.
  • Biolep is safe for human and has no pre-harvest interval.
  • Biolep is a good alternative for a wide range of chemical pesticides currently used for control of lepidopterous pests.

Biolep is formulated as wettable powder (WP) or suspension concentrate (SC) and can be used for control of various lepidopterous pests, especially for pests whose larvae, at least for a definite period, feed externally on plant surfaces. Biolep can be mixed with appropriate volume of water (usually 600-800 liter for one ha.) and sprayed over aerial parts of plants. Young larvae are more susceptible to the insecticide. In case of infection intensity or generation overlaps, repeat spraying every 7-10 days.

Crop type Pest species Target crop Dose of application
Field crops Tuta absoluta Tomato 400-500 gr per hectare
Field crops Helicoverpa armigera Various crops 400-500 gr per hectare
Field crops Ostrinia nubilalis Corn 400-500 gr per hectare
Field crops Chilo suppressalis Rice 400-500 gr per hectare
Field crops Plutella xylostella Cabbage 400-500 gr per hectare
Field crops sp. Cabbage 400-500 gr per hectare
Field crops Spodoptera exigua Various crops 400-500 gr per hectare
Fruit trees Lobesia botrana Grape 500-600 gr per hectare
Fruit trees Yponomeuta malinellus Apple 500-600 gr per hectare
Fruit trees Batrachedra amydraula Palm 500-600 gr per hectare
Ornamental trees and forests Lymantria dispar Various trees 750 gr per hectare
Ornamental trees and forests Hyphanteria cunea Various trees 750 gr per hectare
Ornamental trees and forests Cydalima perspectalis Various trees 750 gr per hectare

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