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GTZ-IPM Horticulture, Kenya
Is this a Minor Pest?
Yes
Minor Pest Title
Flower thrips (Megalurothrips sjostedti)
Minor Pest Description
It may feed on petioles and leaves, but prefer flowers. Attacked petioles and leaves have tiny holes surrounded by discoloured areas. Affected flowers are brown, dried, or completely distorted. The flowers drop prematurely. Thrips also feed on pollen leading to decrease in pollination and seed set. Pod production is low and pods are deformed.
Minor Pest What to do.
- Plough and harrow before planting. It can reduce subsequent thrips attacks by killing pupae in the soil.
- Conserve natural enemies. Natural enemies, particularly, predators are important in natural control of thrips. Main natural enemies include predatory bugs (Orius spp. and Anthocoris spp.) and predatory thrips.
- Spray with biopesticides (e.g. Spinosad), if infestation is severe.
Minor Pest Position
6
Minor Pest Firstcontent
122
Pest Type
insect
Host Plants
Green gram (Revised)
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