Mulberry buds of the occurrence of gall midge dama

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Mulberry buds of the occurrence of gall midge damage and defense

After the applicator toxic soil, control soil insect pupae and capsular bag within the body. 2 ~ 4 on the damage of the larvae with pesticides sprayed mulberry top, spraying pesticides to be considered when prevention and treatment selection and sericulture layout, make silkworm pesticide poisoning prevention efforts. Mulberry gall midge on the specific mosquito control methods, is to control the overwintering pupa and cystic inclusions, in early March, with the withdrawal of long-term soil insecticide poisoning soil. Damage on the 1st generation of larvae,[link widoczny dla zalogowanych], sprayed with pesticides mori top. Sericultural Research Institute of Shandong Province pilot made isofenphos methyl granules, Zhejiang Agriculture Department tests proposed quinalphos, Fuyang county test proposed pesticide as a soil insecticide big storms have good efficacy, Bombyx mori, mulberry No toxic effects. In Jiangsu, Shandong, to promote the prevention and treatment to achieve better results, summarized Huaiyin mulberry bud gall midge control for many years of experience, proposed spreading toxic soil and spray the top of the combination of standardized approach to promote the advancement of the role of prevention and control work. At present, methyl isofenphos improved processing granule formulations, efficacy requirements increased from 35 days to 60 days or more, is in pilot phase. Other agricultural control methods, such as tilling the soil drying pupae, frozen pupae, larvae and other Abstract cores than can be used as complementary measures. Sang is a new pest defense work is moving forward in continuing to explore and seek to improve depth. The current tentative bud gall midge and mulberry mulberry yellow dwarf disease prevention and control objects, loss of mulberry production rate to 25 or so years, it relates to the basic interests of the masses and consolidation of Sericultural big problem. Economic take-off for sericulture, units of the leadership at all levels, sufficient attention. Sang pest defense only under socialist conditions can most effectively organize the masses and technological forces to carry out mass prevention, hoping around in practice, creating the experience, the results may benefit. In view of mulberry defense bud gall midge is a timing are highly technical work in implementing the defense, be familiar with the local and adjacent to the worm information. According to bud gall midge around the mulberry investigation after its generation development and larval infestation of the data compilation in Table 1, Table 2,[link widoczny dla zalogowanych], for the prevention and treatment information. Table 1 stingy Sichuan Nang bud gall midge generation development after injection; survey in 1985, Peng Anxian f ('put system, repair a 1995 Chinese eggs'} s88 | lI �� . Zhen Long vend fluorosis disease of silkworm sericulture production in China has become the major destructive disease, to cocoon production caused a great loss. silkworm industry in China is seeking all aspects of prevention and mitigation of technical measures silkworm fluorosis. To this, the author developed a pharmaceutical fluorosis mitigation silkworm, known as the cause any environmental pollution. through several laboratory tests, since 1992 in Deqing County, Zhejiang,[link widoczny dla zalogowanych], Xinchang County countryside in the middle of trial, to achieve better results. I. Test Materials and Methods 1. silkworm varieties tested : Jingsong �� Haoyue. 2. Determination of fluoride content in mulberry leaves: fluoride content of mulberry sericulture by the company in Deqing County, Determination of Fluoride Monitoring Center during the next 4 to 5 age determination of fluoride in samples of mulberry leaves. 3. for Jing and handling reagent solution fluoride �� mori: the silk,[link widoczny dla zalogowanych], Zhejiang Agricultural University, Department of Physiology group preparation. each weighing 20 grams, add water, 12.5 kg dubbed agent. �� limewater: Use the local concentration of silkworm areas using the same concentration for 2 or so. Both impregnation using mulberry leaves, dried to a mulberry. control without any treatment, directly to Sang 4. experimental design and methods: two each for the three treatment and control Repeat, each cell 200 silkworm. silkworm tested in at number 3 molting take, sleep silkworm weighed within plaque placed. Each district prepared to take five for silkworm silkworm, silkworm sleep weigh prepared from silkworm body weight and silkworm body weight, obtained from the silkworm / sleep silkworm body mass index, in order to prepare from the silkworm silkworm / sleep silkworm body weight multiplied by the corresponding area of the sleep factor silkworm body weight, obtained from the silkworm body weight of each district, the purpose is to avoid doing so from the silkworm When weighing injury silkworm. four times a day to the mulberry, mulberry leaves to each plot when mulberry treatment accordingly. from the beginning into the big sleep,[link widoczny dla zalogowanych], investigation records every 6 hours sleep each district, and sleep the first few silkworm silkworm body weight. After weighing sleep silkworm silk plaque placed in the other surveys from the rate of sleep. 5. fluoride sensitive index calculation: that with fluoride sensitive index of the degree of fluorosis silkworm cell which is calculated by the method of Professor Yang Mingguan scene times weight gain Xiao Cui Mian praise from the rate for re-sprouts Zhen {��.. the individual hours of the average food san ~ = E {x / n. where x is the Rating and food to the center of time to sleep time period the number of hours of fresh mulberry, f the time segment to sleep silkworm Head, 13. for the district to sleep silkworm total. individuals eat mulberry time coefficient of variation: aV-s / ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... l �� Table 2 Mulberry orange sac larvae infestation of the investigation