[{"id":600,"date":"2024-10-09T22:28:00","date_gmt":"2024-10-09T22:28:00","guid":{"rendered":"https:\/\/blogs.clemson.edu\/tandoipm\/?page_id=600"},"modified":"2025-04-27T06:36:29","modified_gmt":"2025-04-27T06:36:29","slug":"sample_vamshi","status":"publish","type":"page","link":"https:\/\/blogs.clemson.edu\/tandoipm\/sample_vamshi\/","title":{"rendered":"Sample_vamshi"},"content":{"rendered":"
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Thrips Information<\/h3>\n

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Species & Identification<\/h2>\n

The most common thrips species to infest greenhouse crops is the western flower thrips. Various thrips species can be encountered on ornamental crops during the growing season, and they vary in body color. Some thrips species also vector viruses.<\/p>\n<\/div>\n

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Damage & Symptoms<\/h2>\n

Thrips are piercing and sucking insects that feed on leaves, flower petals, and growing tips of plants. Their feeding leads to irregularly shaped spots or stippling on the damaged plant tissues. Flowers can be discolored, distorted, or drop early due to thrips feeding. Leaf damage appears as silvery streaking or stippling, and feces may be visible on infested leaves and flowers. Thrips can also vector plant viruses.<\/p>\n<\/div>\n<\/div>\n

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Life Cycle<\/h2>\n

The life cycle of thrips is highly dependent on temperature. It can complete its life cycle from egg to adult in about 12 to 14 days at 86\u00b0F. Thrips lay eggs in leaf tissue, and nymphs begin feeding on leaf tissue. Nymphs can take about 11 days to reach the ‘pupal’ stage. Adults emerge from pupae after 3 to 4 days and move back onto leaves or flowers. Adult thrips can survive for as long as 40 days in warm weather. Multiple generations occur each year due to the short life cycle of thrips.<\/p>\n<\/div>\n

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Scouting<\/h2>\n

Scouting for thrips can be done using yellow or blue sticky cards placed in a greenhouse. Inspect plants for the presence of adults and nymphs on leaves and flowers. Monitor leaves and flowers for feeding damage and feces. Thrips presence can also be monitored by tapping flowers onto white paper.<\/p>\n<\/div>\n<\/div>\n

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Cultural Control<\/h2>\n

Cleanliness and sanitation are essential for thrips control. Remove weeds, plant debris, and growth medium inside and around greenhouses. Eliminate unwanted plants and flowers properly. Use insect exclusion screens with a mesh size < 0.88 mm in vents, sidewalls, and doors. Trap plants like marigold can also be used in empty greenhouses to trap and remove thrips emerging from the soil.<\/p>\n<\/div>\n

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Biological Control<\/h2>\n

Predatory mites, minute pirate bugs, rove beetles, and predatory mites can be used for controlling thrips at different stages. Various entomopathogenic fungi, nematodes, and bacteria are available for foliar applications. Start biological control preventatively, before thrips enter terminal or flower buds.<\/p>\n<\/div>\n<\/div>\n

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Chemical Control<\/h2>\n

Initiate chemical control as soon as thrips are detected. Depending on the weather and thrip populations, apply insecticides at intervals of 3 to 5 days for successful control. Systemic insecticides are effective for foliage control, while persistent foliar applications are needed to protect flowers. Rotate modes of actions to prevent insecticide resistance.<\/p>\n<\/div>\n

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Selected Insecticides for Thrips Control<\/h2>\n

Here are some selected insecticides for controlling thrips:<\/p>\n