CONTROL OF COMMON MILKWEED (ASCLEPIAS-SYRIACA)
CONTROL OF COMMON MILKWEED (ASCLEPIAS-SYRIACA)
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DOI：
10.1017/s0043174500040194
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发表时间：
1981-01-01
期刊：
影响因子：
2.5
通讯作者：
BURNSIDE, OC
中科院分区：
文献类型：
--
作者：
CRAMER, GL;BURNSIDE, OC
乳草(A.syriaca L.)用出苗后除草剂进行了温室试验和田间试验。在温室试验中，与未经处理的对照相比，氨虫隆(3-氨基-S-三氮唑)、敌草畏(3，6-二氯邻苯甲酸)、草甘膦[N-(膦甲基)甘氨酸]以及氨虫隆+敌草畏、草甘膦+2，4-D、草甘膦+2，4-D和草甘膦+敌草畏的组合抑制了6wk龄普通马利筋的再生。出苗后常用的除草剂玉米(Zea Mays L.)、高粱[Sorghum biolor(L.)和大豆[Glyine max(L.)[MERR.]对出苗的马利筋影响不大。在草甘膦0.3公斤/公顷或更高的浓度下，最早在处理后1天移除普通乳草的顶端生长并不影响随后的生长减少。田间试验表明，花蕾生长前期或后期喷施2.2 kg/hm2草甘膦，防效可达70%以上。以2.2 kg/hm2的草甘膦施药后1天翻耕的小区，1年后仍能保持对普通乳草的良好防效。使用除草剂手套或滚筒喷雾器喷洒除草剂，可获得与广播喷雾类似的普通乳草防治效果。
Control of common milkweed (A. syriaca L.) with postemergence herbicides was investigated in greenhouse and field experiments. In greenhouse experiments, amitrole (3-amino-s-triazole), dicamba (3,6-dichloro-o-anisic acid), glyphosate [N-(phosphonomethyl)glycine] and combinations of amitrole + dicamba, dicamba + 2,4-D, glyphosate + 2,4-D, and glyphosate + dicamba reduced regrowth of 6-wk-old common milkweed as compared with the untreated check. Postemergence herbicides commonly used in corn (Zea mays L.), sorghum [Sorghum bicolor (L.) Moench] and soybeans [Glycine max (L.) Merr.] had little effect on emerged common milkweed. Removal of common milkweed top growth as early as 1 day after treatment did not effect subsequent growth reduction from glyphosate at 0.3 kg/ha or higher. In the field, satisfactory control (70% or better) of common milkweed was obtained with glyphosate at 2.2 kg/ha applied at the early or late bud growth stage. Plots plowed 1 day after application of glyphosate at 2.2 kg/ha still retained satisfactory control of common milkweed 1 yr after treatment. Herbicides applied with a herbicide glove or a roller applicator resulted in common milkweed control similar to that obtained from broadcast spray applications.