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Tulip pest control

Years of the demonstration, in particular, successfully held the tulip festival, tulips planted in the city widely recognized, cultivated area increased, and achieved considerable social and economic benefits. However, the tulip cultivation is an important pest in the development constraints, particularly the incidence of disease to the tulip bulb production has brought great losses. To this end,[link widoczny dla zalogowanych], we have since 1998 carried out on the tulip-depth investigation of pests and diseases. 1 Status of our pests Xining main tulip planting tulip unit conducted a survey of pests and diseases, and pests and diseases were identified, which has basically mastered the city's tulip types and incidence of pests and diseases. Tulips are the main pests and diseases in our city: the base rot of tulips, tulip virus, tulip Penicillium rot, seed flies, mites, and wireworms, Xiaoyun spot Melolonthidae etc., in which basal rot tulip, tulips rot disease of Penicillium heavier. 2 Tulip basal rot control chemical screening test for 2.1 and 50% fungicides King cucumber powder, 70% Yilin Lv. Mn-Zn powder, 50% of the procymidone powder, 25% carbendazim WP, 55% of the enemy Nixon powder, 70% thiophanate-methyl WP, 2o% PCNB powder, 75% chlorothalonil powder, 70% thiophanate powder, potassium permanganate. Bolus of 800 times the water as control, dosing culture medium. The results in Table 1. Looking at the results from the experimental carbendazim, thiophanate-methyl the best inhibitory effect, cucumber king, thiophanate-methyl, procymidone inhibitory effect is obvious, Yilin Lv. MZ has some antibacterial effect, chlorothalonil, Nixon enemy, PCNB, poor inhibitory effect of potassium permanganate. Chemical screening results in Table 1 Table 2d the situation after the colony size of the colony diameter after cmSd case cITI123123 gradient test average of 2.2 on the basis of the above experiment, selected from carbendazim, thiophanate-methyl, cucumber Wang, methyl Tuo Bujin the concentration gradient experiment. Concentration gradient set 4: 500x, 750x, lO00x, 1200x concentration of three dishes each,[link widoczny dla zalogowanych], each dish of bacteria placed on a 0.8cm block. Received 13; 2005-03.10 Author; Liu Hu (1964 a), female (Chinese),[link widoczny dla zalogowanych], Sichuan, Chongqing, engineers, landscape plants primarily engaged in pest control work. Control and hold agents. Radical Medicine by culture method, culture temperature 25 ��. The results in Table 2. The results show that there is a strong inhibitory effect of carbendazim, thiophanate-methyl followed. Among them, carbendazim 500x Antibacterial best. Table 2, Table 2.3 Experimental results gradient field control test: 2003,20 O4, we Nursery in Xining City, south of basal rot of tulip field control test carried out. 2.3.1 chemical treatments of the ball test: Test varieties: Kees4elis. 3 replicates, 4 treatments, spaced 20cm, spacing 10cm. Total 26OO grain ball. The results in Table 3. Table 3 ball handling test results pharmaceutical test results see Table 3 tables, Tuobu Jin, carbendazim, have a control effect of potassium permanganate. Among them, the best control effect Tuobu Jin. 2.3.2 Field test of Summer Pharmacy: 2 replicates, 6 treatment. 6 lines for each treatment, each line 2o grain ball, spacing 20cm, spacing 10cm. Total 144O grain ball. The results in Table 4. Table 4 The results of pharmaceutical tables of Summer test results in Table 4 to see, with carbendazim, Tuobu Jin is better for soil processing, in which the amount of carbendazim 3g �� m the best effect. PCNB, Nixon enemy soil disease prevention largely ineffective. 3 Discussion 3.1 According to the survey, most of the city of foreign pests and diseases pests tulip ��,[link widoczny dla zalogowanych], is mainly transferred to the ball with the kind of brought. Therefore, strengthening the tulip bulb tulip quarantine pests and diseases is an important means of prevention. 3.2 Tulip Diseases such tests have proved carbendazim basal rot of tulips strongly inhibited bacteria. However, field control test is not perfect, needs further validation test observations.
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