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 Wysłany: Śro 6:26, 26 Sty 2011 Temat postu: uggs boots italia Application of tax on rice Regen |
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Application of tax on rice Regent of silkworm and determination of residues of
) Effect. 1.3.2 the impact of liquid drift of the silkworm 5 days after spraying were collected from rice in 5m, lOre close to Rice at the direction of the mulberry leaves to feed silkworms, until the cocoon of silkworm observed daily death counts and mortality , the test can be cocooning cocooning the number of cocoon rate, cocoon weight and weighed all the single cocoon weight, and statistical analysis. 13.3 fipronil residue trial from June 20 until July 15 every 5 days and 17 July, with the knapsack sprayer will be tested pesticide fipronil, methamidophos IO00X uniform spray 5 Husang each spray, while starting from July 10 the drug in the sprayed leaves of mulberry trees to feed on the poison taken into the age of 3,[link widoczny dla zalogowanych], after the silkworm, Wei Du leaves divided into two groups, one group was fed 24 hours,[link widoczny dla zalogowanych], another group fed for 72 hours. Non-toxic drugs to feed not mulberry leaves as the control group, each repeated 3 times, each repetition fed 3rd instar silkworm 50. After each treatment were fed non-toxic leaves,[link widoczny dla zalogowanych], until the cocoon, Wei Du leaves, the daily observation of mortality recorded in the silkworm, cocoon rate and cocoon weight. 2 Results and analysis 2.1 Pest control effect of rice planthopper 2.1.1 of the control effect test results show that young nymphs of planthoppers in the second-generation peak (which accounted for 92.38% from the planthopper ), the application of Fipronil control planthoppers significant effect, 7,15,30,45 days after the anti-drug effects were more than 95%, the persistence of up to 45 days. Jiangsu Silkworm 1999 56 4 sites before drug treatment to the base! Next years! Zhu Zhu in the 45-limonene in the amount of anti-insect pest the amount of anti-technology skills insect pest control effect of the amount of control effect of the amount of 2.12 pairs of longitudinal and three-leaf roller control effect of borer can be seen from Table 2, in the second generation vertical leaf roller larvae 1 to 2 peak and the second generation borer eggs hatched peak, with each 666.7m Fipronil 30ml, a drug , Longitudinal Study of the insecticidal �� t-borer leaf protection effect of up to 95.35%, on the control effect Borer has more than 90%, and the effect of dimehypo similar, but higher than the control effect of methamidophos 40%. 2.3 Pesticide residues of fipronil for the test, methamidophos 1000 times at different times in the mulberry sprayed, and also fed 3rd instar leaf collection of silkworm residue test results in Table 4. Table 2 fipronil longitudinal leaf roller, yellow rice borer control effect of fipronil 30rid dimehypo 250m] methylamine stone roller lOOaflCK495356930 Repeat 3 times for each site the average management; 2. Fed each treatment for drug test silkworm leaves 150, each repeated 50 to see the residues of insecticides on the length of silkworm not only the size of mortality as the sole criterion should also consider whether the quality of cocoon production and also affected. As can be seen from Table 4, feeding Weidu leaves 24,72 hours, fipronil and methamidophos in the death of 5 days after treatment Sheng many of which 2 days after treatment mortality reached 90-1o0%, after drug 1O days is still about 50%, from the cocoon rate, the two pesticides within 25 days after the drugs fed leaf collection rate of silkworm cocoon is not the equivalent of pesticide control. And 20 days after the drug leaves collected from silkworm cocoon feeding rate at 95% or more. Weight from the cocoon of view,[link widoczny dla zalogowanych], the two pesticides in the 30 days after treatment, leaf collection after feeding silkworm cocoon weight, cocoon and single were lower than non-pesticide. We conclude that fipronil residues on the mulberry can be identified as 30-day period. 2.4 Demonstration Results in 1998, the city area demonstration and application of rice Sang Hun Zai 3O ml of fipronil on July 25-30 at a variety of insect pests of rice interim control 01,300 hectares overall, large-scale survey, fipronil planthopper, longitudinal leaf roller and stem borer control efficacy were 95%, never found a case of poisoning phenomena of the silkworm, welcomed by the masses, the same is reflected in rice Regent 4 999 573 Summary of Jiangsu Silk and discussion 3.1 Interim Regent control of rice pests, the effect is significant, appropriate medication time of the longitudinal leaf roller, stem borer control effect of 95% of the control effect of rice planthoppers in more than 95% persistence up to 45 days. Fipronil 3.2 methamidophos 1000 times and 1000 times spray directly on the mulberry residue of similar mortality rates from the mori point of view, are 20 days from the cocoon yield and quality point of view, 30 days or more, so the residue of fipronil can be defined as 30 days. 3.3 Use of Fipronil rice, the liquid drift not obvious, less pollution to nearby mulberry, a large demonstration of 01,300 ha area and found no toxicity with the silkworm,[link widoczny dla zalogowanych], proved worthy of promotion and application of fipronil . But in large scale applications, especially in the season will still pay attention to application techniques of sericulture, as pesticide choice in calm weather, while minimizing the nozzle.
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