Antagonistic Interaction of Propanil and Pyribenzoxim on Barnyardgrass Control

Koo, Suk Jin; Kim, Jin-Seog; Kim, Jung Soo; Kang, Seung Hun

doi:10.1006/pest.2000.2476

Cited by 14 publications

(14 citation statements)

References 16 publications

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“…29 Pyribenzoxim, another acetolactate synthase inhibitors, showed loss of herbicidal activity by interference of foliar uptake and/or translocation such as leaf removal within 5 days after application, or application of another herbicide that inhibited phloem flow. 30 Bispyribac-sodium was shown to lose herbicidal activity in cool temperatures. 31 These findings demonstrate the sensitivity of a foliar herbicide to factors such as adjuvants, mowing, rain fastness, or temperature.…”

Section: Field Trialmentioning

confidence: 99%

Methiozolin [5-(2,6-difluorobenzyl)oxymethyl-5-methyl-3,3(3-methylthiophen-2-yl)-1,2-isoxazoline], a new annual bluegrass (Poa annuaL.) herbicide for turfgrasses

et al. 2013

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Section: Field Trialmentioning

confidence: 99%

Methiozolin [5-(2,6-difluorobenzyl)oxymethyl-5-methyl-3,3(3-methylthiophen-2-yl)-1,2-isoxazoline], a new annual bluegrass (Poa annuaL.) herbicide for turfgrasses

et al. 2013

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“…Devine and Hall (1990) suggested that the phloem mobility of herbicides was associated with sucrose transport. Koo et al. (2000) suggested that the physiological effects of propanil (PS‐II inhibitor) decreased the whole‐plant activity of pyribenzoxim (acetolactate synthase inhibitor) in barnyard grass [ Echinochloa crusgalli (L.) Beauv.]…”

Section: Discussionmentioning

confidence: 99%

Physiological basis for antagonism induced by mixtures of quizalofop‐ethyl and bromoxynil in maize (Zea mays)

Kim¹,

Won²,

Lee³

et al. 2006

Weed Research

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In this study, the physiological basis for antagonism induced by mixtures of quizalofop-ethyl and bromoxynil was investigated in maize seedlings. In sequential applications, antagonism was observed when bromoxynil was applied before quizalofop-ethyl or in a mixture with quizalofop-ethyl, but was minimal when bromoxynil was applied afterwards. The degree of antagonism differed with application rates of bromoxynil and with the timing of the treatment. When test herbicides were applied locally to the second leaf, the inhibition of photosystem II (PS-II) in the herbicide-treated leaf was higher with the mixture than with bromoxynil or quizalofop-ethyl alone. Subsequent growth of the untreated third leaf inhibited by quizalofop-ethyl alone then recovered, depending on the dose of bromoxynil. There was no evidence that bromoxynil affected absorption of quizalofop-ethyl. In local applications at different positions on the second leaf, antagonism was only observed when quizalofopethyl was applied to the distal part of the leaf and bromoxynil applied to the proximal part. The antagonism of bromoxynil + quizalofop-ethyl did not occur at the level of acetyl CoA carboxylase and Hill reaction, as revealed by in vitro assays. These results suggest that bromoxynil inhibits the phloem transport of quizalofopethyl and thus antagonises its whole-plant activity in maize.

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“…We conducted the regrowth test of shoots with a modification of the method described by Koo et al . (2000) for evaluating mobility of the herbicides in tissues without using radioactive materials.…”

Section: Methodsmentioning

confidence: 99%

Physiological basis of differential phytotoxic activity between fenoxaprop‐P‐ethyl and cyhalofop‐butyl‐treated barnyardgrass

Kim

et al. 2005

Weed Biology and Management

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This study investigated the physiological causes of differences in phytotoxic symptoms shown in barnyardgrass from foliar applications of the herbicides fenoxaprop-P-ethyl and cyhalofopbutyl. When these were applied to the third leaves of the whole plant, the chlorosis and desiccation in the third leaf was greater in fenoxaprop-P-ethyl than cyhalofop-butyl. However, initial growth inhibition of the fourth leaf was greater when using cyhalofop-butyl than when using fenoxaprop-P-ethyl. In the shoot regrowth test, regrowth at five days after treatment (DAT) was smaller in cyhalofop-butyl than in fenoxaprop-P-ethyl; the regrowth at 10 DAT exhibited the reverse trend. The chlorosis (decrease of chlorophylls: carotenoids ratio) in barnyardgrass leaf segments that were floated on herbicide solution was greater in the fenoxaprop-P-ethyl treatment. These results indicate that different herbicidal responses induced by the two herbicides are likely to be related to differential translocation and metabolism. The relatively light chlorosis and desiccation in treated leaves, severe cessation of initial growth (but a lower final herbicidal efficacy in the cyhalofop-butyl treatment) are probably related to its rapid translocation to the meristem region from the treated leaf, followed by faster metabolism. In contrast, the relatively greater chlorosis and desiccation compared to inhibition of initial growth in the fenoxaprop-P-ethyl treatment is likely to be related to its relatively slower translocation and metabolism in the treated leaf.

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Antagonistic Interaction of Propanil and Pyribenzoxim on Barnyardgrass Control

Cited by 14 publications

References 16 publications

Methiozolin [5-(2,6-difluorobenzyl)oxymethyl-5-methyl-3,3(3-methylthiophen-2-yl)-1,2-isoxazoline], a new annual bluegrass (Poa annuaL.) herbicide for turfgrasses

Methiozolin [5-(2,6-difluorobenzyl)oxymethyl-5-methyl-3,3(3-methylthiophen-2-yl)-1,2-isoxazoline], a new annual bluegrass (Poa annuaL.) herbicide for turfgrasses

Physiological basis for antagonism induced by mixtures of quizalofop‐ethyl and bromoxynil in maize (Zea mays)

Physiological basis of differential phytotoxic activity between fenoxaprop‐P‐ethyl and cyhalofop‐butyl‐treated barnyardgrass

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