Thrips observation method

Abstract

The invention discloses a thrips observation method which comprises the following steps: first selecting flowers around a tobacco field randomly, wherein the flowers are solitary flowers, whole inflorescences or any one of the inflorescences; then closing a receiving observation device to the flower; holding the flower to shake quickly toward the receiving observation device and shaking thrips inthe flower to the receiving observation device to observe thrips on the receiving observation device so as to determine quantity of thrips, wherein the quantity of the flowers around the tobacco fieldis 20-40. According to the method, by means of the habit that thrips are fond of gathering in plant flowers, the thrips field harm is predicated and forecasted favorably by observing harm and quantity of thrips on the flowers of plants around the field, so that production is guided for precise prevention. In particular, under the circumstance that the tobacco plants are relatively large and thrips dispersed on the tobacco plants have harm, the method has the advantages of being convenient to operate and high in accuracy.

Description

technical field [0001] The invention belongs to the technical field of agricultural and forestry pest control, and in particular relates to a thrips observation method. Background technique [0002] The said thrips is a collective name of the order Thysanoptera of Insecta, about 6000 species are known in the world, and about 600 species are known in China, mainly including Thripidae and Angiothrysidae. The larvae are white, yellow, or orange, and the adults are yellow, brown, or black; they like to eat plant juices on plants, and harm the flowers, fruits and leaves of plants, and more like to harm the flowers of plants. The body is small, with a body length of 0.5-2mm; the head is slightly rear-mouthed, and the mouthparts are file-suction, which can break the plant epidermis and absorb the juice. In Yunnan, thrips occur all year round, such as eggplant, cucumber, kidney bean, pepper, watermelon, tobacco, onion, etc. The main species that cause damage to melons, fruits and v...

AI Technical Summary

Problems solved by technology

[0003] In agricultural production, in order to prevent thrips damage and prevent thrips from spreading viruses, it is necessary to manually observe the presence or absence of thrips damage in the field, but it is difficult to directly observe thrips damage on crops due to the small size of thrips

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