Bean flower thrips
Thrips | |
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Bean flower thrips | |
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Scientific Classification | |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Class: | Insecta |
Order: | Thysanoptera |
Family: | Thripidae |
Genus: | Megalurothrips |
Species: | Megalurothrips usitatus |
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Areas of confirmed M. usitatus distribution (green) and unknown (grey) | |
Synonyms | |
Bean blossom thrips Bean flower thrips |
Bean flower thrips (Megalurothrips usitatus) are small cigar-shaped insects up to 2 mm long. The adults are dark brown with a reddish tinge. Adults lay their eggs inside leaf tissue. After feeding, the immatures drop from the plant and pupate in the soil. Generations are continual and populations are highest during warm and dry weather. Temperatures of around 20°C (68°F) favour reproduction and survival.[1]
Symptoms[edit | edit source]
Flowers and flower parts are brown, dried, or completely destroyed. The flowers drop early. The petioles and leaves have tiny holes surrounded by discolored areas. Pod production is low and pods are deformed.[2]
Control[edit | edit source]
Populations of thrips can become quite large, though there is no evidence that thrips cause losses in yield. No specific control measures are needed for the management of thrips.[3]
References[edit | edit source]
- ↑ Bean blossom thrips. The State of Queensland (Department of Employment, Economic Development and Innovation) Retrieved: 2011-02-12.
- ↑ B.L. Parker, N.S. Talekar and M. Skinner. (2001). Mungbean Insect Pests - Bean Thrips. Discover Life. Retrieved: 2011-02-12.
- ↑ Ranga Rao, G.V., and Shanower, T.G. (1999). Identification and Management of Pigeonpea and Chickpea Insect Pests in Asia. International Crops Research Institute for the Semi-Arid Tropics. p.38. ISBN 92–066–412–6