Today has been to apply Bacillus thuringiensis to the turnip, the leaves were pretty chewed by some kind of larva, or caterpillar probably fly col.
Bacillus thuringiensis is a biological insecticide composed of the spores that acts only on larvae and caterpillars. After your application form or delta endotoxin protein crystals that are activated by enzymatic effect under alkaline pH conditions of the stomach of the larvae of Lepidoptera, causing osmotic imbalances that disrupt the insect's gut wall, leading to sepsis by mixing the hemolymph with fecal material causing death. Although this process may take 3 to 4 days, the larva stops eating minutes after ingesting the crystals halt its mouthparts, stopping the damage to the crop immediately.
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