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Scirtothrips dorsalis, the chilli thrips [derivation 1] or yellow tea thrips, is an extremely successful invasive species of pest-thrips [1] which has expanded rapidly from Asia over the last twenty years, and is gradually achieving a global distribution. It has most recently been reported in St. Vincent (2004) Florida (2005), Texas (2006), and ...
The spots, which may be as much as 12 mm across, are generally circular and have an irregular edge often with a yellow halo. Leaves frequently turn yellow and fall early. Sometimes new leaves are produced, and these may also become affected. Continual defoliation will cause weakness, dieback or death of the plant. Some very susceptible species ...
The chili thrips, Scirtothrips dorsalis, is an Asian pest on many crops, including chili peppers, roses, strawberry, tea, ground nuts, and castor bean. The western flower thrips, Frankliniella occidentalis , has recently expanded its range from western North America to large portions of Europe and Asia through the trade of greenhouse plants.
Boxelder bugs only feed on box elder seeds and leaves, so they don't actually cause damage to most plants. "They appear in high numbers which leads people to get concerned when you see 50, 60 ...
Adults have both winged and wingless forms; in the grass thrips Anaphothrips obscurus, for example, the winged form makes up 90% of the population in spring (in temperate zones), while the wingless form makes up 98% of the population late in the summer. [79] Thrips can survive the winter as adults or through egg or pupal diapause. [14]
Articles relating to the Thrips (order Thysanoptera), minute (mostly 1 mm (0.039 in) long or less), slender insects with fringed wings and unique asymmetrical mouthparts. Different thrips species feed mostly on plants by puncturing and sucking up the contents, although a few are predators. Entomologists have described approximately 6,000 species.
The cultured mites can be mixed with bran and sprinkled on the crop or spread by air blast. When multiple species of pest are present, it may effectively control one but not another; for example, in field grown cucumbers, it was found to control melon thrips on leaves, but failed to control common blossom thrips on flowers. [2]
The adult common blossom thrips is a very small insect with a length of between 1 and 1.6 mm (0.04 and 0.06 in). There are two colour morphs, a dark form and a pale form, each occupying part of the range, with forms of both colours being reported from Egypt, India, Kenya, New Guinea, Puerto Rico, Sudan and Uganda.