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Control Efficacy of Several Fungicides against Potato Late Blight

Zhang Huapu

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Abstract

The 4 fungicides were evaluated in order to select out the effective chemicals to control potato late blight.[Methods] Efficacy of four fungicides against potato late blight were tested in field experiment.[Results] Phosethyl-Al 80% WP,eugenol 0.3% SC,phenazino-1-carboxylic acid 1% SC and cymoxanil mancozeb 72% WP were effective for controlling potato late blight.Among of them,eugenol 0.3% SC showed the best activity with 72.17% control and increasing of yield of 25.53% compared with CK.[Conclusions] Eugenol 0.3% SC could be used extensively to control potato late blight in the field.

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What this paper is about

The 4 fungicides were evaluated in order to select out the effective chemicals to control potato late blight.[Methods] Efficacy of four fungicides against potato late blight were tested in field experiment.[Results] Phosethyl-Al 80% WP,eugenol 0.3% SC,phenazino-1-carboxylic acid 1% SC and cymoxanil mancozeb 72% WP were effective for controlling potato late blight.Among of them,eugenol 0.3% SC showed the best activity with 72.17% control and increasing of yield of 25.53% compared with CK.[Conclusions] Eugenol 0.3% SC could be used extensively to control potato late blight in the field.

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Available abstract

The 4 fungicides were evaluated in order to select out the effective chemicals to control potato late blight.[Methods] Efficacy of four fungicides against potato late blight were tested in field experiment.[Results] Phosethyl-Al 80% WP,eugenol 0.3% SC,phenazino-1-carboxylic acid 1% SC and cymoxanil mancozeb 72% WP were effective for controlling potato late blight.Among of them,eugenol 0.3% SC showed the best activity with 72.17% control and increasing of yield of 25.53% compared with CK.[Conclusions] Eugenol 0.3% SC could be used extensively to control potato late blight in the field.

Key concepts: Blight, Fungicide, Mancozeb, Eugenol, Phytophthora infestans, Horticulture, Methyl eugenol, Agronomy

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