Prevention and control measures of premature senescence of hot pepper

In the later stage of pepper growth, because of improper fertilizer and water management, diseases and insect pests or other factors, pepper plants often lead to premature senescence, premature senescence will seriously affect the yield, and serious will lead to premature plant death. In order to promote the high yield of pepper and avoid premature senescence, it is very important to prevent premature senescence of hot pepper. Let's take a look at the detailed introduction.

1. Strengthen the supply of fertilizer and water

It is necessary to fertilize chili peppers in time to improve sufficient nutrients for plant growth and development. at this time, it is an important point to avoid plant premature senescence. Generally, the membership fee should be watered in time before the pepper is harvested. Generally, topdressing is necessary for each fruit harvest, and then topdressing every 10-20 days. Topdressing can apply rotten human feces and urine or nitrogen and phosphorus fertilizer, chemical fertilizer should pay attention to the amount of chemical fertilizer, generally apply diammonium phosphate 10 kg, potassium sulfate 5 kg, urea 1 kg per mu, dissolve it in water before fertilization, and then irrigate the root of pepper. Should not dig holes to apply, so as not to damage the root system of pepper.

2. Scientific prevention and control of diseases and insect pests

One of the causes of premature senescence of hot pepper is the harm of diseases and insect pests. the common diseases are anthracnose and blight, which mainly harm branches, leaves and fruits. Anthracnose can be sprayed with 500-fold solution of benzoin once every 10 days for 2-3 times, and the epidemic disease can be controlled with 800-fold solution of chlorothalonil or 500-fold solution of antiviral alum. For virus disease and root rot disease can also be sprayed to control, with carbendazim and methyl thiophanate 500 times solution irrigation can propagate virus disease and root rot disease. The main pest of pepper is aphids, which can be sprayed with 2000 times solution to avoid aphids.

3. Timely harvest

Early harvest in time can prevent the fruit from consuming a lot of nutrients and prevent the plant from senescence prematurely. If harvested too late, it will not only consume too much nutrients, but also lead to premature senescence and death of the plant. In addition to the varieties or remaining seeds of red pepper, the appropriate harvest time is when the green fruit does not turn red, generally, the interval time for each harvest is 7-10 days, and too long interval will form premature senility, while red pepper is suitable for harvesting at the beginning of red. Late will increase nutrient consumption, resulting in premature senescence.

4. Avoid overgrowth

After the first harvest of chili pepper, when the plant is in the off-branch stage, the new branches at the bottom should be pruned in time to reduce nutrient consumption. After the first bud of the second crop of pepper, the tender shoots, ineffective shoots and flower buds should be removed in time to reduce nutrient consumption and promote fruit expansion.

The above is the introduction of pepper premature senility prevention and control measures, hope to help you, want to know more related knowledge, please pay attention to us.