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Evaluation and Screening of Fungicides for Controlling Apple Canker

Author: DiHuiZhe
Tutor: CaoKeQiang；HuTongLe
School: Agricultural University of Hebei
Course: Pesticides
Keywords: Apple rot rotten tree disease Antiseptic Control efficiency Evaluate Wound healing
CLC: S436.611
Type: Master's thesis
Year: 2011
Downloads: 106
Quote: 0
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Abstract


The apple canker is also known as the \Currently there are more selection Pharmacy, very confusing to use, lack of efficacy evaluation rot prevention. Make an objective evaluation of the current production on the pharmaceutical and recommended for growers preferred Pharmacy, which is the main purpose of this article. The test from the prevention and treatment of officially registered apples rot disease agent elected the nine pharmaceutical representative and not yet registered propiconazole microemulsion as a test Pharmacy through direct antibacterial test, in vitro branches trials to promote wound healing test and field efficacy trials, evaluation on the apples rot disease prevention effect of the 10 chemicals; survey of the different shape of the wound healing. The main findings are as follows: 10 kinds of chemical fungicides on mycelial growth inhibition was tested through improved confrontation, the results showed that: 10 kinds of chemical agents, the strongest antibacterial agents is 3% methyl sulfide the benomyl paste (new fruit Herbalife) and 2.12% humic acid copper agent, antibacterial band are 5.00 cm, followed by 6.5% poisoning bacteria Shimizu agent, 45% Propiconazole azole microemulsion 3.315% METHYLTHIO · naphthalene agent for acetate smear. 2. Punch method for the determination of different pesticides on wound healing, the test results show that the 3% methyl thiophanate paste (Japan) and 3.315% the methylthio? Naphthylacetate the smear agent for wound healing works best callus (60 d) width of 2.00 mm and 0.92 mm wider than in the control. 3. In vitro shoots protection in the role of test, 3.315% methylthio the? Naphthylacetate smear agent, 2.12% humic acid copper agent, 3% methyl thiophanate paste (Japan) treatment were not disease. 3.315% the the methylthio? Naphthylacetate smear agents in vitro test of branches therapeutic effect, 6.5% poisoning bacteria Shimizu agent, 45% Dyson ammonium. Liquid, 3% methyl thiophanate paste (new fruit Herbalife) 2.12% humic acid copper agent average lesion expansion area were less than 50 mm2, 3.315% the methylthio? naphthylacetate smear agent poisoning bacteria Shimizu agent and 6.5% control efficiency was 87.5%, the lesion area only clean water were 1.6% and 2.2%. 4. Consider Pharmacy oxysporum 10 tested pesticides sort the combined effects on wound healing in the tree, one of the best pharmaceutical 3.315% methylthio? Naphthylacetate the daub agent and 2.12% humic acid copper the agent; taking into account the protective effect away from the the body branches trial in pharmaceutical and therapeutic effects of the 10 tested pesticides sort, of which 3.315% the methylthio · naphthylacetate smear agent control effect. Together, 3.315% the the methylthio · naphthylacetate smear agents are the best agents in all tested pesticides. Field test results show that: 3.315% the the methylthio · naphthylacetate smear agent is the best control efficiency in selected pharmaceutical lesion did not recur; followed by 45% Dyson ammonium agent, and its efficacy was 83.4%; 1.8 % Sim bacteria amine acetate saline agent the worst, only 16.6% control efficiency. 6. From different shapes wound healing situation, the first callus is formed left and right sides of the wound site. Wherein the width of the oval average healing is most wide, up to 3.23 mm. Production will rot lesion scraping into an oval shape is more conducive to wound healing.

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CLC: > Agricultural Sciences > Plant Protection > Pest and Disease Control > Horticultural Crops Pest and Disease Control > Fruit tree pests and diseases > Pome pests and diseases > Apple pests and diseases
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