In recent years, people have become more and more popular with green, pollution-free and organic food. Some of the original ecological soil pesticides and soil formulas have been rediscovered and utilized . First look at the peppers. Taking a vegetable plot of about 50 square meters as an example, the amount, concentration and production process of the chili medicament are as follows:
First, take about 500 grams of spicy fresh pepper, cut into small Ding, add 5 kg of water to cook for 10 minutes, filter to obtain chili juice, then add about 100 grams of ordinary washing powder in the chili juice, then 15 kg of water, fully stirred evenly, and then sprayed into a sprayer to evenly spray after cooling, which can control pests such as aphids and red spiders of common vegetables.
What is the principle? There are a series of acyl components with strong pungent odor in pepper, which is commonly known as capsaicin. It is the raw material for the production of analgesics, detoxification and pollution-free pesticides. It is a piece of cake to drive and even kill small locusts and red spiders.
The main ingredient of the mixed washing powder is sodium alkylbenzene sulfonate, which is easily soluble in water, can have a contact effect on pests, and can inhibit the hatching of eggs . The melted washing powder is sprayed on the worm body, and can quickly adhere to the worm body to form a gas-impermeable film, so that the insects suffocate and die. It is worth noting that beans and melons are more sensitive to detergents added to peppers and should be used with caution.
You can also choose the pepper leaves (200 grams) that are not very good, cut them into pieces, add a small amount of water to smash, then filter the residue to get 100 grams of the original solution, then mix 1 kilogram of water, then add 0.3% soap. liquid. Spraying can effectively prevent downy mildew, powdery mildew and anthrax in common vegetables such as cabbage.
Say bitter. Bitter tree itself is toxic and has the most fruit toxicity . First, choose 500 grams of bitter buckwheat leaves, chop the seeds together, add 3 kilograms of water to boil, filter the residue after half an hour, then dilute 10 kg of water, then add 20 g of washing powder and mix well. The insecticidal rate of cotton leafhopper and cotton aphid can reach 90%, and it can be used to control underground pests such as cockroaches and golden worms . The amount of watering is 3 kilograms per square meter. Bittericides are suitable for use in the fall, as the concentration of insecticidal ingredients in the leaves and seeds of the tartary buckwheat is highest .
The leaves of the arborvitae contain components such as bitterin, volatile essential oil, and resin. 200 grams of peach leaves are shredded, and then boiled with 2 kg of water for about 10 minutes. After filtering off the residue and then 10 kg of water, spraying can control vegetable aphids, aphids and cabbage caterpillars such as cabbage. It can also control rice leafhoppers and rice planthoppers. 500 grams of arborvitae leaves were chopped, boiled with 2 kg of water, sprayed and filtered to control rice blast and cotton aphid, and inhibit cotton anthracnose .
The manure of poultry is also a good soil pesticide. You can collect two or three kilograms of rabbit and pigeon droppings, pour it into a plastic bucket, about 20 kilograms of water, and cook for half a month. When used, stir and evenly water the roots of the vegetables, which can kill underground tigers, donkeys, etc. Pests can also play a role in topdressing, killing two birds with one stone.
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