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In view of the fact that the varieties of crops in the southern Xinjiang region of Xinjiang are relatively single and the species diversity of the cotton fields is relatively low, the current layout of cotton fields is improved, and the arrangement of wheat-cotton-wheat or wheat-cotton-cotton-cotton is applied to increase the number of natural enemies in cotton fields and make full use of the environment. Its own regulatory role enhances the environment's own imperial capacity.
Bio-regulatory system technology
1. Planting ecological canola on both sides of cotton field
During the spring cotton sowing, rapeseed collection belts are planted on both sides of the cotton fields, and pests such as radish sprouts on non-damaging cotton plants are used to attract natural enemies, thereby attracting natural enemies, increasing the number of natural enemies in cotton fields, and controlling the damage of cotton field pests. .
Specific planting methods: At the same time when cotton is sown, the ditch is opened on both sides of the field, and the ditch is 5 cm deep, and planted on both sides of the field. Rapeseed seeds are mixed with 100 g of sand and soil and sowed for 300 to 500 meters.
2. Field planting hoe
Planting earthworms at about 10 meters in the headland of the field not only prevents the waste of cotton fields caused by mechanical operations, but also causes the natural enemies of the earthworms to move into the cotton fields with the harvesting at different times, which increases the number of natural enemies in the cotton fields and strengthens the cotton fields. Its own imperial capacity; at the same time, it can also increase the income of farmers.
3. Natural enemies lure supplies
1 Apply vinegar residue and wine residue (2 kg/mu) in the cotton field to lure predators.
2 The cotton aphid extract was applied in the cotton field to attract natural enemies and enhance the ability to control the damage in the cotton field.
4. Use artificial breeding, releasing Trichogramma to control the damage of cotton bollworm
Trichogramma has a good control of cotton bollworm, and also has a prominent role in protecting and improving the ecological environment.
Trichogramma was released during the emergence and spawning period of second generation H. armigera. Specific release method: 3 points to 6 points per acre, each release 20,000 Trichogramma; release times: 4 times; interval: 3 days to 5 days.
Comprehensive application of various measures
1. Field cultivation of corn traps
At the same time as cotton sowing in spring, a single row of corn burrowing belts was planted on both sides of the cotton fields. The distance of corn planting was: one plant per 50 cm.
In the second generation of Helicoverpa armigera larvae, the corn was chopped, which greatly reduced the damage of cotton bollworm in cotton fields.
2. Putting Yang Zhi into the field
Put 6 to 8 Poplars per acre and insert them every day. The next day is clear and the harvest will be collected in the morning. Yang Zhi used the Yang branch to grow a 50 cm, 20 cm diameter inverted trumpet.
3. Biological agents
The use of biological preparations with low natural killing of natural enemies and utilization of the characteristics of the egg shells after hatching by the larvae of the bollworm larvae was applied at the height of the second generation of bollworm eggs, which not only protected natural enemies but also reduced the damage of bollworms.
4. Frequency vibration type insecticidal lamp
In the second generation of cotton bollworms during the eclosion period, placing the frequency-vibration insecticidal lamp in the cotton field can reduce the cotton bollworm baseline in the cotton field.
Placement of frequency-vibration insecticide lamps: every 60 acres.
Cotton Ecological Regulation System Technology
Promote the rational distribution technology of grain and cotton crops