Experts: according to regulation use

"swollen agents" harmless health

Health reporter MengQingPu

"Swollen" watermelon, "ripened" banana, "pill" cucumber... In recent days, use growth regulator fruit, vegetable food safety attention from people. Experts say the plant growth regulator according to allow scope and allow usage be safe to use, it will not cause health hazard.

Before listing subject to safety evaluation

"Whether judge a kind of chemical substances, whether on health toxic, must produce adverse effect associated with dose!" May 20 afternoon in China agricultural university institute, between two floor of a laboratory, the domestic famous plant growth regulator HeZhongPei application expert professor clear.

HeZhongPei said, China has will include "swollen agent", the plant growth regulator into pesticide management scope. According to "pesticide management regulations, the registration and only get pesticide dealt with production license, pesticide products to production, management and use. Apply for registration of pesticide products, only by science evaluation, proof better control effect on human health, and environmental impact controllable, examinatio registration.

HeZhongPei introduction, the safety of plant growth regulator mainly through mice acute poisoning dose (half a fatal dose of) to evaluate, according to Chinese pesticide toxicity grading standards, "swollen agents" main ingredients plavix urea, preparations for WeiDu for pesticides. Another kind of the same for the growth regulator ethylene and lower theripener), (acute poisoning dose reversed-phased mice for 5110 milligrams per kilogram of body weight, their toxicity and sodium chloride quite.

Hands a plavix urea, HeZhongPei said the instructions, our country in pesticide registration, approved on tag medication period, prescribed dosage and applied method, noted the scope and security clearances use. "In practical applications, GuaNong should strictly according to the dosage labeling requirements, medication period and applied method, if use undeserved, pesticide presumptuously raise dose or processing or uneven, will lead to local concentration is exorbitant, appear deformity fruit, etc." (odium) phytotoxicity symptoms

Not lead to "precocious puberty"

The side effects of hormone, people's first reaction is often "small beard", "Eva precocious puberty". So, the use of the plant hormones fruit will also lets the edible "precocious puberty"? To this, HeZhongPei made clear, plant hormones and animal hormone mechanism completely different, "there are two different things."

HeZhongPei said, plant growth regulator have slow growth and promote grow two action. With the media recently reported banana "(ethephon theripener" as an example, through the release of ethylene achieve the purpose of promoting the banana growth. As a kind of plant hormone (auxin), ethylene in banana body also is natural exist. Experiments show that, too high or too low concentration of ethylene interest grow and save against bananas, "use much result is bad." instead Cucumber use of so-called "pill" also belong to this category. Farmers are using, general is out of cucumber fresh purpose, also can accelerate the cucumber growth, stretched, melon body.

"Don't hear hormone is nervous, like ethylene and only to such auxin, plays a role in plant growth speed with animal hormone no relationship. In addition, the toxicity to animals (ethephon small, high security, no need to fear hormone big hat." HeZhongPei says with a laugh.

Should strengthen the supervision guide used correctly

According to the provisions HeZhongPei thinks, although the production use plant growth regulator is safe, but must pay attention to, at present there is some manufacturers without registering, without good not according to the standard production, marketing.

"As a chemistry substance, the use of raw material is inferior, the existence if some unknown impurities, on one hand, may let peasants use up no effect, or destroy plant growth, KengNong, HaiNong; on the other hand, may also bring about the future of food safety hidden trouble." HeZhongPei this suggestion, the departments concerned should increase supervision. Meanwhile, because China's agricultural production scale, how to lead the high degree of retail farmers correct use of growth regulator is also the government department issues that need to be resolved.

Department of agriculture: 60 "swollen agents" products to achieve registration

Aiming at the agents "about" swollen, the agriculture ministry web site has some doubt XieYi a siren published expert interview.

Q: the fruit of residual agents "or" swollen state standards?

Answer: the United Nations food and agriculture organization (FAO) and the world health organization (WHO) built pesticide safety evaluation norms and standards, Europe, America and other developed countries has established a set of strict risk assessment system. According to international standards in China in the developed countries for reference, established on the basis of experience of a relatively perfect pesticide safety evaluation system. The United States, Japan and many other developed countries will "swollen agents" as do not need to undertake the exemption of toxic substances list, management of the residual need not make safety evaluation standard, there is no scientific evidence that will cause harm to human body health.

Q: use "swollen whether agents" as "pure" lean as illegal add?

Answer: according to 1997, the state council promulgated the regulations on the administration of pesticides on pesticide definition, "swollen agents" belongs to the pesticide category. Plavix urea, red mildew acid "swollen agent" and "pure" lean are fundamentally different, plavix urea, red mildew acid belong to registration approval allows the use of pesticide varieties, and "pure" belong to lean state banned the manufacture, sale and use of illegal additives.

Q: there are reports say "swollen by Japanese agents" research, but then appear melon deformity, no longer use, why China is still in use?

Answer: plavix urea in the United States was first developed and Japan first in 1985 began to production and use. According to verify, at present, plavix urea in Japan still register and use, registration for grapes, kiwi, scope of watermelon, melon, eggplant, tobacco and other crops (not like some experts say, Japan has stopped registration and use). In the late 1980s, China imported from Japan this "swollen, in 1992, agent in China, and obtain the registration in pesticide used some provinces began. At present, our country not only in streptozotocin-induced plavix using a broader, and in the United States, the European Union, Australia, Japan, South Korea and other countries and regions are widely used.

Red mildew acid as a plant growth regulator, the earliest in 1961 by Britain, development and production. In 1985, the domestic pesticides production enterprise to obtain our pesticide registration. At present, the red mildew acid worldwide used extensively, have not yet found to be harmful to humans.

Q: "swollen in China's agent production status?

Answer: at present, there are 60 "swollen agent" products in China has gotten registration, the effective components containing two (plavix urea and red mildew acid), 45 home pesticide production enterprise involved, these enterprises are national pesticide fixed-point enterprise, has the corresponding production conditions and ability, the production of the product is approved registration legal.