How to control cotton rotten
2. Pruning Foliage Pruning in the late stage of cotton growth can not only reduce the consumption of nutrients and nutrients, make concentrated nutrient supply for peaches, but also reduce the shade of the field, and has a significant effect on the control of rotten peaches. In the latter stage of pruning, the emphasis should be on the cotton fields that grow stronger and seal the lines early and heavy. It is necessary to seize the time to destroy the old, weak, sick and yellow leaves under the main stem, and open the “skylight†at a proper time, ie, remove the main The leaves on the upper part of the stem are cut off in time to remove the branches and empty fruit branches, and the axillary buds are to be seen and played, and the removed leaves are taken out of the field for treatment. If necessary, the cotton leaf can be removed.
3. Pushing the plants to dry In late August to late September, the cotton fields that thrive and have more overlapping branches and leaves can be pushed to dry. Select the sunny day to open the cotton line, so that the adjacent two rows of cotton plants tilted to the "eight" shape, so that the other side of the line open, fully get the sun exposure, in order to reduce the humidity in the field, reduce the breeding of bacteria, reproduction. If there is a lot of rain, it will be carried out every 5 to 7 days. The first line of air will be narrowed and the other line will be dry afterwards. This will alternately push the lines to dry, which can effectively reduce the humidity in the field.
4. Kill aphids Cotton mid-to-late borer pests (such as cotton bollworms, red bollworms, diamond drills, etc.) on the boiled cotton on the wounds, often easy to cause bacteria infection and cause rotten peach. Therefore, it is very important for cotton fields to manage pests.
5. After picking rotten peaches and rotten peaches, they must grab the spades, peaches, and peaches in time to bring them back to the booth to dry them in a ventilated place to promote ripening of rotten peaches. In sunny days, they can be exposed; In the case of rainy weather, it can be baked to force it to burst and then stripped. This will not only prevent the propagation of pests and diseases, but also cause the bolls to be burnt and restore some of the damage.
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