What Is Insect Growth Regulators?

Insecticide is an agent that kills pests, such as beetles, flies, cockroaches, larvae, hoppers, and nearly 10,000 other pests. The use of insecticides has gone through several stages: the first to discover natural insecticides and inorganic compounds, but they have a single effect, a large amount, a short duration; organic synthesis of organochlorine, organophosphorus and carbamate.Insecticides, which are characterized by high-efficiency, high-residue or low-residue, many of which have high acute toxicity to mammals.

A study by France and Argentina confirmed that long-term exposure to pesticides does have an impact on male fertility. They advise people to use pesticides with caution and pay attention to the adverse effects of environmental pollution on human health.According to Luc Multini, an expert at the French National Institute of Health and Medical Research, the study was carried out in an important agricultural region in Argentina where pesticides are used very frequently. The researchers tested the semen of 189 infertile men in the area and found that the sperm count and vitality in these men's semen were far below normal. Further studies have shown that these men's hormone secretion has been severely disrupted. Compared with normal males, men who have long lived in the environment using insecticides have increased estradiol secretion, while those who play an important stimulating effect on testes have reduced secretion of luteinizing hormone.The expert said that the testicle is an important reproductive organ of men and one of the organs most sensitive to chemical harmful substances in the environment. According to their research, insecticides are diffused in the air, and their harmful substances first act directly on the testes, leading to imbalance of hormone secretion in the victim, and ultimately affecting the entire reproductive system, resulting in decreased quality or infertility of men's semen.

The first few months of pregnancy are a critical period for fetal brain development. If a mother is pregnant in the summer, she will inevitably be exposed to pesticides. "People use pesticides in farms and homes, and people have the most exposure to pesticides in the summer. Continuous exposure to pesticides can affect the hormone secretion of pregnant women, which affects fetal brain development."Supporting this conclusion, there is also an earlier study by Winchester that found that excessive exposure to pesticides in pregnant women may cause premature babies; insecticides may cause thyroid disease in pregnant mothers, which may affect fetal development.But some researchers have also suggested other explanations. They believe that the food that mothers consume during pregnancy is closely related to the season, and that there are different epidemics in each season of the year. Both of these factors can affect neonatal health and brain development.

A. Strengthen fertilizer and water management.1. Reasonable fertilization. Mainly based on organic fertilizer, supplemented by chemical fertilizer; heavy application of base fertilizer, appropriate amount of topdressing; focus on the application of nitrogen, phosphorus, potassium fertilizer and the use of micro-fertilizer; no fruit-sensitive fertilizer, regulate growth.2. Scientific management of water. The period of maintaining the fruit and improving the fruit setting rate is when the water demand of the fruit tree is high. If the soil is short of water, it should be watered in time, and combined with fertilization. Do not pour water at noon on hot days, and should be done in the evening or in the morning.B. Strengthen tree management.1. Thinning flowers and thin fruit. Fruit trees with too much flower and fruit are thinned and thinned, and the amount of flowers and fruits should be determined according to the specific tree potential, and the fruits, deformed fruits and overly dense fruits should be removed.2. Pressure control summer shoots. The fruit can be used to control the rapid growth of summer shoots by water spray or adopting new shoots to promote reproductive growth and increase production and income.3. Reasonable pruning. Pruning can reduce shading and enhance photosynthesis. It is usually combined after fruit picking or thinning and thinning, cutting off weak branches, dead branches, cross branches, diseased branches, short and strong branches to reach expanded fruits. the goal of.C. Strengthen pest control.1. Seize the prevention period. According to the law of occurrence and development of pests and diseases, seize the timely use of drugs in key periods of prevention and control to reduce pests and diseases.2. Rational use of pesticides. The first is to choose low-toxic and high-efficiency pollution-free pesticides; the second is to prepare the concentration according to the instructions for pesticide use, and the concentration should not be too large; the third is to pay attention to the prevention and treatment methods, and the insecticide should not be applied during the flowering period, and the spraying should not be carried out in rainy or high temperature. Fruit tree sensitive pesticides.