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2009•Journal of Changjiang VegetablesRequires access

Control Efficiency of Three Fungicides on Pumpkin Powdery Mildew

Zhou Guo-hu

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Abstract

In the early stage of disease development, randomized block design was used to evaluate the control efficiency of three fungicides on pumpkin powdery mildew (Sphaerotheca fuliginea Poll.). The results after 7 days of the first and the second time showed that the control effect of the Fuxing (40% Flusilazole EC at 7 500 times dilution ), Chengbiao ( 80% Sulphur DF at 600 times dilution ), the 15% Triadimefon WP at 1 000 times dilution were 95.69%, 94.43%, 92.74%, and 80.85%, 73.08%, 68.91%, respectively. The control efficiency of Fuxing on pumpkin powdery mildew was significantly higher than that of Triadimefon, but the the control efficiency between Fuxing and Chengbiao, Chengbiao and Triadimefon had no significant difference. So, All the three fungicides could be used for controlling the pumpkin powdery mildew, but the Fuxing was the first choice.

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What this paper is about

In the early stage of disease development, randomized block design was used to evaluate the control efficiency of three fungicides on pumpkin powdery mildew (Sphaerotheca fuliginea Poll.). The results after 7 days of the first and the second time showed that the control effect of the Fuxing (40% Flusilazole EC at 7 500 times dilution ), Chengbiao ( 80% Sulphur DF at 600 times dilution ), the 15% Triadimefon WP at 1 000 times dilution were 95.69%, 94.43%, 92.74%, and 80.85%, 73.08%, 68.91%, respectively. The control efficiency of Fuxing on pumpkin powdery mildew was significantly higher than that of Triadimefon, but the the control efficiency between Fuxing and Chengbiao, Chengbiao and Triadimefon had no significant difference. So, All the three fungicides could be used for controlling the pumpkin powdery mildew, but the Fuxing was the first choice.

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Available abstract

In the early stage of disease development, randomized block design was used to evaluate the control efficiency of three fungicides on pumpkin powdery mildew (Sphaerotheca fuliginea Poll.). The results after 7 days of the first and the second time showed that the control effect of the Fuxing (40% Flusilazole EC at 7 500 times dilution ), Chengbiao ( 80% Sulphur DF at 600 times dilution ), the 15% Triadimefon WP at 1 000 times dilution were 95.69%, 94.43%, 92.74%, and 80.85%, 73.08%, 68.91%, respectively. The control efficiency of Fuxing on pumpkin powdery mildew was significantly higher than that of Triadimefon, but the the control efficiency between Fuxing and Chengbiao, Chengbiao and Triadimefon had no significant difference. So, All the three fungicides could be used for controlling the pumpkin powdery mildew, but the Fuxing was the first choice.

Key concepts: Powdery mildew, Triadimefon, Fungicide, Sphaerotheca, Horticulture, Randomized block design, Myclobutanil, Biology

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