The cotton aphid is a common pest in the field. This year it was obviously heavier than in 2007 and 2006. The larger amount of the aphid was mainly concentrated in the first and third divisions of the suburbs and some of the four or six divisions. During field management, the total field took decisive measures to strengthen the monitoring of cotton aphid while it was intensified. First, in late June, the peaks of migratory wings moved to the peak of the spraying period, and the highly efficient and low-toxicity chemicals were used to spray the greenhouses and the vegetables in the garden. Reducing the migration of winged plovers has greatly reduced the number of insect populations in the field and eased the pressure on field control. In late June and early July, on the fields where the prevention and control targets have already had oily leaves, high-efficiency, low-toxicity pesticides such as Saydan, imidacloprid, and acetamiprid were used to block off the land and pick patches, and individual plots were added. Machine power protection. By the end of July, the number of natural enemies had developed rapidly, cotton locusts had drastically reduced, and the normal growth of cotton had been good. The insect report lamp is an important plant protection tool for trapping insect pests. Its prediction result is very accurate and provides a reliable basis for formulating effective measures.
In 2008, when cotton "three bugs" occurred at the same time, more than 97% of the units were able to coordinate the "three insects" of cotton. The total field and breakouts, breakouts and the company, company and plant protection personnel have signed three levels of responsibility for the management of plant protection work and clarify responsibilities among themselves. In terms of funding, all efforts are made to provide all guarantees for the prevention and control of cotton “three insectsâ€. The insect report light is purchased and supporting facilities amount to more than 400,000 yuan, so that a reasonable layout of insect traps is formed in the main area of ​​cotton in the total field, in order to reduce the number of insect populations in cotton fields. Played a decisive role.
Using the insect report light, the most prominent point in the treatment of "three insects" in cotton is the "ageing". For example, in the prevention and control of cotton bollworms, unified drug use, unified prevention and control of time, and uniform operation quality are adopted. In 2008, the occurrence of cotton bollworms was extremely irregular. In particular, the peak period of the second and third generations of adults was long and spawning time was long, which caused certain difficulties in prevention and control. In response to this situation, first, the amount of eggs laid was still greater after one round of defense. Blocks are used for supplemental defense. Second, NPV or BT preparations with long drug efficacy time are used in combination with other pharmaceuticals (such as Methoquinone, Diflubenzuron III, etc.), and satisfactory results are obtained. The time of prevention and control of the bollworm was “quasi†and the timeliness was very strong. The bollworm larvae of all generations of the total field basically completed the control within five days. According to the inspection of the plant protection work, the generation rate of the generation of bollworms at the top of the first generation does not exceed 5%, and the rate of bolls of the third generation bollworms does not exceed 0.5%, which has established a high yield base for cotton production. High-yielding cultivation technology of draught irrigation silage corn.
In 2008, when cotton "three bugs" occurred at the same time, more than 97% of the units were able to coordinate the "three insects" of cotton. The total field and breakouts, breakouts and the company, company and plant protection personnel have signed three levels of responsibility for the management of plant protection work and clarify responsibilities among themselves. In terms of funding, all efforts are made to provide all guarantees for the prevention and control of cotton “three insectsâ€. The insect report light is purchased and supporting facilities amount to more than 400,000 yuan, so that a reasonable layout of insect traps is formed in the main area of ​​cotton in the total field, in order to reduce the number of insect populations in cotton fields. Played a decisive role.
Using the insect report light, the most prominent point in the treatment of "three insects" in cotton is the "ageing". For example, in the prevention and control of cotton bollworms, unified drug use, unified prevention and control of time, and uniform operation quality are adopted. In 2008, the occurrence of cotton bollworms was extremely irregular. In particular, the peak period of the second and third generations of adults was long and spawning time was long, which caused certain difficulties in prevention and control. In response to this situation, first, the amount of eggs laid was still greater after one round of defense. Blocks are used for supplemental defense. Second, NPV or BT preparations with long drug efficacy time are used in combination with other pharmaceuticals (such as Methoquinone, Diflubenzuron III, etc.), and satisfactory results are obtained. The time of prevention and control of the bollworm was “quasi†and the timeliness was very strong. The bollworm larvae of all generations of the total field basically completed the control within five days. According to the inspection of the plant protection work, the generation rate of the generation of bollworms at the top of the first generation does not exceed 5%, and the rate of bolls of the third generation bollworms does not exceed 0.5%, which has established a high yield base for cotton production. High-yielding cultivation technology of draught irrigation silage corn.
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