The tomato leafminer tuta absoluta (Meyrick), a genus of the lepidopteraidae, is known as the "Ebola virus" on tomatoes. Originating in Peru in western South America, the worm has occurred in more than 80 countries and territories in South America, Europe, Africa, Central America and Asia, seriously harming fresh tomatoes, processed tomatoes and cherry tomatoes/cherry tomatoes, with yield losses of up to 80%-100%.
Figure 1 The left picture shows the adult tomato leafminer moth, and the right picture shows the tomato leafminer moth larvae
Since it was first discovered on fresh tomatoes in China in 2017, tomato leafminer moths have been found in Xinjiang, Yunnan, Guizhou and other places.
Figure 2 Comparison of Ili-tomato leafminer moth in Xinjiang before and after pest of fresh tomatoes in September 2017
Second, the characteristics of the hazard
Tomato leafminer moth mainly uses larvae to harm; once hatched, the larvae sneak into the host plant tissue, eat the leaf flesh, and form a small submersible channel on the leaf, which is usually not easy to be found in the early stage, and the concealment is extremely strong; when the insect mouth density is relatively high and the larval age is relatively large, it can also eat the apical tips, axillary buds, young stems and young fruits. When the 3-4 instar larvae eat the leaves, the submerged passage is obvious and irregular, and leaves black feces and the epidermis on the window paper, affecting the photosynthesis of the plant, and the leaves shrink, dry and fall off in severe cases; when the young stems are submerged, more cracks are formed to affect the overall development of the plant, and cause necrosis of the young stems.
Fig. 3 Hazard characteristics of tomato leafminer moth
3. Monitoring and prevention
Traditional chemical pesticide control is the main way to control the occurrence and harm of tomato leafminer moth, although it can achieve the prevention and control effect to a certain extent, but long-term high-intensity use, will lead to crop pesticide residues exceeding the standard, causing environmental pollution, destroying the farmland ecosystem, and is not conducive to the sustainable development of agriculture.
As a leading enterprise in the field of green plant protection, Ekman has always maintained a keen insight, in the face of the serious situation of tomato leafminer moths at home and abroad, Ikeman responded quickly and actively carried out the research and development and innovation of green prevention and control products of tomato night moths. Recently, invited by international customers, with its independent research and development of the control innovation product - Ikeman ® tomato leafminer moth sex core, in Nepal to carry out tomato night moth monitoring effect demonstration work, a series of comparative tests and monitoring effect data show that the Ikeman ® tomato leaf moth sex core A, B the lure effect is 1.86 times and 1.1 times the tomato leaf moth core of a competitive company, respectively, fully proves the effectiveness of the Ikeman tomato leaf moth moth core in the control of tomato leaf moth, respectively, which fully proves the effectiveness of the Ikeman ® tomato leaf moth moth core in the control of tomato leafminer moth. It has been unanimously recognized by customers and friends.
Figure 4 From left to right, there is a blank control, a competing company tomato leafminer moth core, Ikeman ® tomato leafminer moth core B, Ikeman ® tomato leafminer moth core A
Next, Icoman will continue to optimize and further develop tomato leafminer green prevention and control related products, comprehensively improve the efficiency, economy and practicality of products, and gradually build an industry-leading green prevention and control technology system for tomato leafminer moths. In the domestic market, dare to guard the "main position" for the "main force", and actively prevent the further spread of the tomato leafminer moth; in the international market, give full play to the advantages of the enterprise, use China's original technology to escort the development of the international tomato planting industry, and continuously contribute to the development of the global green plant protection cause!