Control effect of different herbicides stems and leaves treatment on weeds in wheat fields

doi:10.14088/j.cnki.issn0439-8114.2024.12.009

Abstract

Abstract: In order to select suitable herbicides for stem and leaf treatment, the safety of wheat and weed control effects of 15 kinds of stem and leaf treatment herbicides were compared and analyzed by using stem and leaf spray treatment in field plot experiment. The results showed that 10% carfentrazone-ethyl wettable powder（WP） was harmful to wheat, but had no effect on new leaves of wheat. Field efficacy results showed that 3.6% mesosulfuron-methyl·iodosulfuron-methyl-sodium water dispersible granule（WG）, 50% isoproturon WP, 10% carfentrazone-ethyl WP, 25% chlorotoluron WP, 41% flufenacet suspension（SC）, 20% pyroxsulam·halauxifen-methyl WG,50% diflufenican WG, 25% thifensulfuron methyl WP and 42% MCPA-isooctyl·fluroxypyr emulsifiable concentrate（EC） had better control effects on gramineous weeds, and the persistence was longer. The plant control effect and fresh weight control effect were both above 80%. 50% diflufenican WG, 10% carfentrazone-ethyl WP, 53% 2-methyl-4-chlorophenoxyacetic acid-dimethylamine salt aqueous solutions（AS）, 25% chlorotoluron WP, 15% clodinafop-propargyl emulsion in water（EW） and 42% MCPA-isooctyl·fluroxypyr EC had better control effect on broadleaved weeds, and the persistence was longer. The plant control effect and fresh weight control effect on weeds were more than 80%. 50% diflufenican WG, 10% carfentrazone-ethyl WP, 25% chlorotoluron WP and 42% MCPA-isooctyl·fluroxypyr EC had good control effects on gramineous and broadleaved weeds, and the plant control effects of 45 days after treatment and fresh weight control effects were more than 90%, which could be used as stem and leaf treatment herbicides for weed control in wheat fields.

Key words: stem and leaf treatment herbicides, wheat field, weed, control effect

CLC Number:

S482.4

ZHANG Hua-chong, DAI Bao-sheng, ZHAO Shu-qi, YAN Zhen-hua, HUANG Xiao-li, ZHANG Xin, HE Tao, LI Wei. Control effect of different herbicides stems and leaves treatment on weeds in wheat fields[J]. HUBEI AGRICULTURAL SCIENCES, 2024, 63(12): 52-56.

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