Using a new evaluation method, Congo red method, the foliar uptakes of eight fungicides were measured. Among the fungicides tested, fenarimol, myclobutanil, edifenphos, isoprothiolane, and tricyclazole were found to be penetrable (11.0~42.8%), and were continuously absorbed into the leaf regardless ...
Using a new evaluation method, Congo red method, the foliar uptakes of eight fungicides were measured. Among the fungicides tested, fenarimol, myclobutanil, edifenphos, isoprothiolane, and tricyclazole were found to be penetrable (11.0~42.8%), and were continuously absorbed into the leaf regardless of their formulation types. Procymidone, dimethomorpb, and ethaboxan were seldomly absorbed into plant leaf. The uptakes of dimethomorph and ethaboxam were facilitated (18.1~22.7%) in the presence of Koremul-OE-20, as an activator, showing plateau phase at 12h after application. Foliar uptake of fenarimol and myclobutanil into cucumber plant by spray application was larger than that by dropping application, while observed opposite in the cases of dimethomorph and ethaboxam containing activator. Congo red method in conjunction with spraying application used in the present study produced the clear results on foliar uptake of fungicides and therefore proved to be better than the conventional method in which the dropping application of pesticide has been used.
Using a new evaluation method, Congo red method, the foliar uptakes of eight fungicides were measured. Among the fungicides tested, fenarimol, myclobutanil, edifenphos, isoprothiolane, and tricyclazole were found to be penetrable (11.0~42.8%), and were continuously absorbed into the leaf regardless of their formulation types. Procymidone, dimethomorpb, and ethaboxan were seldomly absorbed into plant leaf. The uptakes of dimethomorph and ethaboxam were facilitated (18.1~22.7%) in the presence of Koremul-OE-20, as an activator, showing plateau phase at 12h after application. Foliar uptake of fenarimol and myclobutanil into cucumber plant by spray application was larger than that by dropping application, while observed opposite in the cases of dimethomorph and ethaboxam containing activator. Congo red method in conjunction with spraying application used in the present study produced the clear results on foliar uptake of fungicides and therefore proved to be better than the conventional method in which the dropping application of pesticide has been used.
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문제 정의
In this paper, the foliar uptakes of 8 fungicides into cucumber and rice plant were measured by Congo red method to investigate the penetration characteristics of those fungicides to plant leaf.
성능/효과
These results also indicated that the conventional dropping method used in the radiotracer technique, could not give the practical information for both systemic and non-systemic fungicides, and particuMly for activator-containing formulations.
후속연구
In these reasons, the radiotracer method is often not suitable for conventional researches and the development of pesticide formulations. Furthermore, it is necessary to find a new evaluation method for measuring foliar uptake of pesticides in case which the technical material or the commercial formulation of pesticide must be used, and which spray application is required.
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