 Wysłany: Sob 15:09, 22 Sty 2011 Temat postu: nike sale Pesticides on fruit production environme |
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| Pesticides on fruit production environment pollution and its countermeasures
Experience, attracting insects with fruit area in Thousand Trapping mainly for leaf mites, mealybugs Kahn, leaf roller, gypsy moth, small gray elephants, cotton aphids and so on. In 2008, after using the lure insects with the year 2009, do not spray acaricides to the survey in early August, mites damage leaves 68.5% reduction in the rate of leaf mites, leaf rollers overwintering insect trapping rate was 89.8% on the small gray elephant trap rate was 73%, on scale insect trap was 69.5%, and 77.5% moth trap. Trapping was spraying insecticide in reducing the number of acaricide 2-3 times. Use of black light to trap and kill a variety of Lepidoptera, Coleoptera adults, the trunk can trap and kill a variety of pests Sokcho. 2) biological methods. Such as lacewings, flower bugs, ladybugs are mites, aphids and natural enemies like Kuwana, Trichogramma to control apple leaf rollers,nike sale, apple moth, fleas jump wasps are natural enemies of pear psylla,moncler outlet, sunlight is the woolly apple aphid wasps predators. In order to fully play the role of natural enemies in the natural enemies of the types of drugs should be strictly controlled, no drug or reduce the medication. At the same time in the orchard grass between the lines or ask for nectar plants attract natural enemies, or artificial introduction of feeding the release of natural enemies, increasing the number of natural enemies. Types of biological pesticides currently in orchard agricultural antibiotic 120, more oxygen adriamycin, g bacteria Kang, 9281, oxytetracycline, Beauveria bassiana, B. T. , Abamectin, avermectin insecticides, matrine, nicotine,uggs kopen, such as diflubenzuron-based 3. Use of mineral pesticides (sulfur formulations, copper preparations) against insect pests, mainly calcium polysulfide sulfur preparations, it has bactericidal, insecticidal, acaricidal effect, the concentration of dormant common Baume degrees 3 to 5, with 0 the growing season .1-0.5 Baume degrees. Mainly referring to Bordeaux mixture of copper preparations, it can prevent many diseases, pests also have some repellent effect, generally used in fruit growing late. 2.3 reasonably safe use of pesticides when pest outbreaks need to use pesticides, you should use high efficiency, low toxicity and residue, natural enemies of fruit trees and safety, pollution or pollution-free pesticides, be reasonable and scientific use of pesticides. Prohibit the use of highly toxic, high residue of pesticides such as monocrotophos, methamidophos, omethoate, dicofol, etc.; limited use of moderately toxic pesticides, such as chlorpyrifos, Kung Fu (usually during the growing period to allow spray 1); selection of low toxic, low-residue pesticides such as imidacloprid, killing hexaflumuron, moth mites Ling, three tin, great students, lucky star, easy to protect, spray grams, mancozeb and so on. Intervals in strict accordance with pesticide safe use of pesticides in fruit picking 20-30 days before the ban on the use of chemical pesticides. In the treatment process to achieve timely, adequate and accurate medication, should also not the early onset of disease or prevention. Pest control should be achieved in the insect population control targets, the young larvae, insect damage before concealed to avoid the occurrence of natural enemies, sunny, no rain to be selected when the medication. The concentration of drug should be strictly controlled, the effective concentration range, as far as possible with low concentrations. When spraying, try to make a variety of diseases and insect pests can do to rid of the tyranny, can choose not to general rule of governance, not to control a number of effective spraying, to minimize the use of chemical pesticides. 2.4 The prevention and treatment programs of several major diseases and insect pests 1) rot. Adding manure is mainly to enhance tree vigor, mechanical damage trees and reduce sunburn. 2) anthrax. Violent skin disease also known as general as the infection period in late May, mid July to late August as the incidence of this disease is prevention and control of two key periods. Chemical control: in late July to early September sprayed every 15 to 20 days 1, 2 or 3 times even spray to protect the autumn shoot, 4% of farmers used 800 times against 120, or 80% of the Blue Mill 1200 times, Carbendazim l200 times or so. Fruit picking 70% after spraying the whole garden a clean shoot 800 times. 3) The peach gum disease. The early stages tree, the Ministry of early curettage disease, after disinfection with 75% alcohol, 50% carbendazim WP 100 ~ 200 times, or 50% Tuobu Jin WP 100 times, or 1:1:10 Podor fluid,tory burch shoes, or 1% copper sulfate and other pharmaceutical brushing wound year applicator two (the first half of May, the second half of September), each applicator 2 to 3 times. 4) spider. Chemical control: When the leaf surface or if the average density of 2-3 head mites / leaf should be prevention, early prevention and early treatment. Choice of 20% pyridaben 2000 times, 2500 times 57% of such benefits appear. Should pay attention to the different agents used interchangeably or in combination, in order to avoid drug resistance. 5) The scale insects. In early June, late July to early August period is the best medicine, the choice of Chlorpyrifos 40% from 1000 to 2000 times, or 25% excellent happy to 1,000 times. Qing Yuan promptly after harvest. 6) aphids. Main hazards buds, young shoots, wet conditions, serious, the choice of 10% Pl ~ insects morpholine 2000 times, or 15% of net 2000 times to kill aphids, prevention and treatment of peach, apple aphids, to rid spiniferus effect excellent. A 35 - More articles related to topics： timberland boots Walnut timely harvesting and post uggs online Kiwifruit industry should pay attentio nike sale Rural Housing Preservation Technology _7 |
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