Pollution-free green fruits require that the harmful substances contained in the fruit must meet national safety standards. Therefore, the content of harmful substances such as pesticide residues, heavy metals, and nitrates cannot be exceeded. Therefore, chemical pesticides should be used less in plant protection, and the use of biological pesticides and biological enemies should be promoted to protect the environment and maintain ecological balance.
(I) Pollution-free control of pests
1. Use natural enemies to control pests. There are many natural enemies of various pests in nature, and the rational use of these natural enemies will have a great effect in controlling pests. For example, insects and larvae of Coccinellidae such as Coccinella septempunctata, Coccinella septempunctata, Coccinella septempunctata and other species can be preyed on various species of aphids, cockroaches, scale insects, whiteflies, etc., and they can prey on aphids and spider mites. Eggs are produced in the eggs of Pyrosphaeridae using Trichogramma. After hatching, the larvae feed on parasitic yolks, so that the eggs cannot be hatched and the eggs are killed. Now natural enemies have basically completed artificial breeding and can be used for production.
2, using a variety of microorganisms and growth of withers to control pests, some fungi, bacteria and other microorganisms or growth regulators to promote the disease or insect pests caused by physiological disorders, kill pests. For example, Beauveria bassiana is used to control peach borer pests, Bacillus thuringiensis is used to control moths, tussock moths, leaf roller moths, and ulnar bugs, antibiotics are used to control red spiders, diflubenzuron pesticides are used, and white moths are controlled. The effects are ideal.
3, the use of pests themselves to control pests. For example: the use of sweet and sour liquid to kill pear pests, brown leaf roller moth, leaf roller moth, pear borer, gold thread moth, peach insects and other insects, have played a certain role in pest control, pest management.
(B) disease-free prevention and treatment of fruit trees pests mainly to prevent, supplemented by treatment, the most commonly used non-polluted agents are lime sulfur and Bordeaux mixture.
1. Lime-sulfur mixture: Before the budding of fruit trees, Baume 3~5 degree lime sulfur is sprayed for sterilization and insecticide. It can control grape powdery mildew, peach leaf thinning disease, bacterial perforation, pears, etc. Bobumei 0.3 to 0.5 degree lime sulfur can control powdery mildew and also treat aphid pests.
2. Bordeaux mixture: Bordeaux mixture is used for leaf protection and sterilization in the growing season. 200 to 240 times excess Bordeaux mixture can prevent pear scab, black spot disease, etc. 200 times half Bordeaux fluid control grape black spot, downy mildew, brown spot and so on. Care should be taken to prevent Bordeaux fluid from contaminating the fruit surface and should not be used after the fruit has been removed from the bag until harvested.
(C) Use of chemical agents Chemical agents are a variety of organic phosphorus, sulfur, and arsenic used in our daily life. They are highly toxic, highly toxic, and residual. They can be used under conditions that cannot be controlled by pollution-free agents, and can be used to their full potential. The speed killing and protection effects should be formulated strictly in accordance with the requirements of use. It is not appropriate to increase the concentration and scope of application, and reduce environmental pollution and pesticide residues.
We Hebei Tomato Industry Co., Ltd are specializing in processing canned food for many years. We can supply you with Tomato Paste with different sizes, besides, we can do Canned Peach, Canned Pear and juice, Nata de Coco, IQF, etc. Our goods is up to international standard. we export canned peach to Japan with large quantity every year. Some African countries are our markets too.
*Related Products:canned whole peach and pear.
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