The site of tomato bud blight is generally near the place where the second and third spikelets of the plant are located. Longitudinal sutures appear at the axillary buds of the diseased plants and form cracks. They are vertical or "Y"-shaped. The edges of the fissures are sometimes irregular, but there are no insect feces. Plants with severe bud blight occur and the growing point no longer grows upward. Instead, there is a situation where many branches grow upward.
Prevention:
1. Spraying a new high-fat film timely after colonization of tomatoes can effectively prevent the ground water from evaporating, seedling water from transpiration, isolation of pests and diseases, and shortening of the seedling-releasing period. At the same time, attention should be paid to the ventilation at noon, so that the indoor temperature of the shed does not exceed 35°C; or The shade net covers to reduce the light intensity and avoid high temperature hazards; it is also possible to spray fresh water on the leaves at high noon to reduce the ambient temperature.
2, in the growing period of tomato fertilizer application of formula, and appropriate increase in the application of boron, zinc and other micro-fertilizer, timely cultivator weeding, reasonable watering, spraying Huan Wang No. 3 inhibition of the main tip prosperous, and promote flower bud differentiation; while in flowering During the result period, Zhuang Tiling, a fruit sprayed at the time, enhanced the quality of pollen fertilization, improved the rate of fruit set in circulation, promoted the development of fruits, prevented fruit cracking and deformed fruit formation, improved the quality of tomatoes, and yielded high yields again and again.
3, after the occurrence of bud blight, pay attention to develop new results ear, remove some leggy shoots, and spray a new high-fat film to form a protective film to prevent the invasion of bacteria; at the same time in the appropriate position to keep a panicle grow better inflorescence, Use it to replace lost ears to reduce yield loss. If necessary, use a borax solution with a concentration of 0.1% to 0.2% and a new high-fat membrane 800 times to spray the plants on a foliar spray, once every 7 to 10 days, and even spray 2 Up to 3 times, improve plant disease resistance.
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