-
How effective are neem seed extract and neem oil as insecticides?
Have you heard of neem plant insecticide? This is an insecticide made from insecticidal compounds extracted from a plant. The development and use of neem plant insecticide seems to have become a worldwide trend. In Thailand, I saw that some places already use neem as street trees, and flower markets everywhere
-
Uses of Wood Vinegar in Agriculture: Wood Vinegar Uses and How to Use Wood Vinegar
Production and Use of Wood Vinegar: What are the agricultural uses of wood vinegar? Do you know the uses of wood vinegar and how to use it? Let's take a look below. Uses of Wood Vinegar The main component of wood vinegar is vinegar, and in addition there are
-
How to Make Sugar-Vinegar Solution: Formula Ratios and Functions Explained
Sugar-vinegar solution: Spraying sugar-vinegar on leaves can prevent and control pests, diseases and frost damage. After spraying vinegar solution on crop leaves, it increases leaf acidity, which in turn inhibits or kills pests and diseases that cannot tolerate acidic conditions, achieving control. According to observational research, bacterial diseases
-
Detailed Explanation of Vinegar Making Methods and Fruit Fly Control Techniques
Do you know how to make acetic acid? And do you know anything about fruit fly control methods? If not, let's take a look together below. I. Acetic Acid Making Method Purpose of use: Pouring into soil has the effect of suppressing nematodes; spraying on leaves has a fertilizing effect and also has repellent and sterilizing functions.
-
How effective is azadirachtin as an insecticide, really?
Neem - nature's insecticide. Neem has insecticidal and sterilizing properties and has long been used as a herbal medicine. But do you know its effects on insects, the residual activity of azadirachtin, the systemic action of azadirachtin, the efficacy of azadirachtin products, and so on? If not,
-
How to control the spiraling whitefly? A complete analysis of whitefly control methods
There are two methods for controlling the spiraling whitefly: one is physical control, and the other is biological control. What are the natural enemies of the spiraling whitefly? Let's take a look. 1. Physical control In the field, at a water flow rate of 12.5 liters per minute, treat the underside of guava leaves once every 2 days,
-
What methods are there for detecting pesticide residues in vegetables?
Pesticides are very difficult to wash off completely with water. Water-soluble pesticides in particular are absorbed by plants through the roots and enter the plant body, making them impossible to wash away; fat-soluble pesticides, on the other hand, do not dissolve in water and are hard to wash clean with water, while using fruit and vegetable cleaners carries the risk of secondary contamination from ingesting the cleaner itself.
-
How should fruits and vegetables be washed to remove pesticide residues thoroughly?
Today's vegetables and fruits are all sprayed with pesticides, and pesticide residues are also very serious, so how should we wash them to minimize pesticide residues? Excessive nitrogen fertilizer on fruits and vegetables - beware of cancer. Although eating fruits and vegetables is good for health, when nitrogen fertilizer is used excessively, the nitrate present in leafy vegetables can trigger diseases such as esophageal cancer, gastrointestinal cancer and liver cancer.
-
How do you wash fruits and vegetables to get rid of pesticide residue thoroughly?
How to wash fruits and vegetables so you can eat with peace of mind: To remove pesticide residue from the surface of fruits and vegetables, consumers usually have to treat them before eating. The following methods, such as washing, peeling, storing and cooking, can all remove pesticide residue, letting people eat with peace of mind. Let's take a look.
-
How do vegetables get nitrogen fertilizer applied? Signs and dangers of excessive nitrogen fertilizer
It is worth noting that nitrate ions, upon contact with digestive enzymes in saliva, are converted into nitrosamines, a chemical compound that the medical community has confirmed to be a carcinogen. Therefore, Professor Zheng Zhengyong reminds the public that just as the Department of Health encourages children to eat more fruits and vegetables, they should also
条件筛选