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Sweep net mite mite control mulberry silkworm safety assessment of


Preliminary report on the results as follows: First, materials and methods selected the same mulberry growing experimental area for spraying treatments mites sweep the net set mu 2O WP (Jiangsu Jianhu Pesticide Plant Production) 15 grams, 30 grams, 45 grams,[link widoczny dla zalogowanych], Dicofol EC 100 ml of 20 mu (Jiangsu Province, such as the East pesticide factory production) and water as control, the above exchange water 1O0 kg for mulberry leaf spray. In addition, each dealing with the 4th instar silkworms reared lO0 cocoon cluster head first (spring silkworm varieties SU × SU) at 3 days after treatment, 3 eat sleep get up rates. Separate mu mites sweep the net 45 grams to 12 days after drug Sang (age 5 silkworm) Total 6 treatments + each have three repeat. Other rearing measures foot in a conventional manner. Spring Silkworms were recorded during the test development of dynamic, Shangcu period, cocoon rate,[link widoczny dla zalogowanych], cocoon shell weight and dry volume. Second, results and analysis 1. Abstract leaves 3 days after the drug to the pharmaceutical treatment san showed loss of appetite, age extended sleep period push, the silkworm body is relatively small, the net 3o g Esau mites. 45 grams of the two treatments is particularly evident. 45 grams of which treatment,[link widoczny dla zalogowanych], 3 days after eating there three silkworm poisoning. 2-3 days after each treatment but the amount of fresh mulberry become normal, to sleep on the water were pushed back over 3 days, 2 days behind than dicofol. To the age of 5 are the treatment of raw mulberry became normal. Shangcu of a general push for a 2 days after the l, 45 g treatment is delayed for 3 days. 45 grams net sweep mite l2 days after the drug treatment to pick mulberry leaves. 5 instar of no influence. 2. Analysis from the Shangcu cocoon, sweeping the net l5 grams of mites after treatment with 3 days of dicofol to pick mulberry leaves, sweep the net 45 grams mites 12 days after treatment with the water pick mulberry leaves to the control of the question, no difference in rates of cocoons. Other treatments, there was significant difference. With the sweep net dose of multiplying mites,[link widoczny dla zalogowanych], significantly decreased the number of cocoons, or on the part of silkworms can not Shangcu Camp Gan no silk cocoon. Table l. Table 1 The mites sweep the net with objects bearing in mind the amount of Shangcu dormancy period of 1996 3 Jiangsu Silk 3. According to the treatment of dry shell cocoon production and the amount of analysis of variance, two control rooms and 45 grams of net sweep mite to the San l2 days had no effect on cocoon production. Mu l5 grams net sweep mite cocoon yield was significantly higher than that of water control. This may be stimulated by the Pharmacy of silkworm body, resulting in significantly longer growth period, increased to a mulberry, cocoon weight gain, dry shell increased, resulting in the improvement of cocoon production, but as the dose increased, cocoon production is significantly decreased. Tests show that the sweep net 3o g mites than the control water and dicofol, cocoon production decreased 7.24,9.22. Dosage was reduced to 45 grams l9.86 and 21.67. The cocoon shell test, 5O g dry shell of the original amount of the net amount of sweeping mite l2 l5 grams and 45 grams higher than the control treatment days to the San,[link widoczny dla zalogowanych], but the treatments did not reach significant levels. Table 2. Table 2 sweep net creep home safety analysis of Liu III Summary and discussion 1.20 mites sweep the spider net drug WP against Kuwata 3 days after the 4th instar silkworms reared, began to show loss of appetite, developmental delay, age extended. 2-3 days after the return to normal feeding. Mu mites sweep net l5 grams. No effect on cocoon production, on the contrary a significant increase compared with the control. Mu 30 grams and 45 grams of a more serious impact on the silkworm. But mu l2-day to 45 grams of mulberry silkworm no effect on the age of 5. Dose of 2.20 mu sweep net 15 grams of mites can be used in the mulberry fields, but the dosage should be strictly controlled, not free to raise the concentration to ensure safety, and suggested that after spraying the time delay from Mulberry to 7 days, in order to increase safety factor. 3. The following 3 years old after spraying the impact of the silkworm, and the different time and on to the mulberry silkworm, and the degree of influence the relationship with the pharmacy is not clear, pending further tests. 々 々 々 々 々 々 々 々 々 々 々 々 々 々 々 々 々 々 々 々 々 々 々 々 々 々 々 々 々 々 々 々 々 々 々 々 々 々 々 々 々 々 々''r_'rT_ News Information: iiIi ▲. L, Jiangsu Province, Institute of Sericulture Research JFH experts to inspect a 2oo hot air circulation machine automatically Cocoon 18 June 1996 to 20 Sericulture Institute, Jiangsu Province, switched working group in the Dongtai cocoon joint study group on the domestic rich Changan JFH 200 hot air circulation for a cocoon drying machines automatically use the site survey and study. Chevalier Silk Group Corporation, manager of Luke Song of cocoon drying machine to use the situation for three years was introduced, the manufacturer Changzhou Electronic Instrument money Huiliang fifth director describes the development and production process of cocoon drying machines. And the situation around the application. JFH a 200 hot air circulation drying cocoon automatic machines throughout the country has been promoting the use of nearly 60, the province with nearly 3o units. The machine is simple, low labor intensity, drying capacity, drying cocoon quality, cocoon drying efficiency. The successful development of the aircraft, marking the automatic localization of cocoon drying machines, changing the country rely on automatic cocoon drying machines imported from Japan situation. (File)
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