The invention relates to a method of combating phytopathogenic diseases on crop plants which comprises applying to the crop plants or the locus thereof being infested with said phytopathogenic disease an effective amount of a combination of
a) a benzophenone of formula I
1
wherein R
1
is methoxy or methyl, R
2
is C
1
-C
4
alkoxy or
2
-halogenbenzyloxy, R
3
is C
1
-C
4
alkoxy, R
4
is C
1
-C
4
alkyl, halogen or trifluoromethyl, and R
5
is hydrogen, halogen, C
1
-C
4
alkoxy, trifluoromethyl or nitro;
in association with
b) a compound selected from the group comprising compounds of formulae II, III, IV, V, VI, VII, VIII, IX, X and XI as described herein.
本发明涉及一种用于作物植物上对抗植物病原菌病害的方法,其包括向作物植物或其受到感染的部位施加有效量的以下组合物:
a) 公式I中的苯甲酮,其中R1为甲氧基或甲基,R2为C1-C4烷氧基或2-卤代苄氧基,R3为C1-C4烷氧基,R4为C1-C4烷基,卤素或三氟甲基,R5为氢,卤素,C1-C4烷氧基,三氟甲基或硝基;
b) 选择自公式II,III,IV,V,VI,VII,VIII,IX,X和XI化合物组成的群体中的一种化合物。
Aqueous photodegradation of the benzophenone fungicide metrafenone: Carbon-bromine bond cleavage mechanism
作者:Minghui Hong、Xuerui Yang、Xuewei Zhang、Yuefei Ji、Lei Zhou、Guangli Xiu、Zhigang Ni、Claire Richard
DOI:10.1016/j.watres.2021.117775
日期:2021.11
Metrafenone (MF), as a new type of benzophenone fungicide, has been widely used in agriculture and is persistent in the environment. Understanding its photochemical fate is essential for the comprehensive evaluation of its ecological risk. In the present work, we reported a detailed study on the photochemical transformation of MF in aqueous solution under irradiation (at λ > 290 nm using a high pressure
Method of detecting compounds that control fungal diseases via effects on sporulation
申请人:——
公开号:US20020155518A1
公开(公告)日:2002-10-24
The invention relates to a method for identifying chemical or biochemical agents capable of suppressing asexual reproduction in fungi. The method comprises identifying compounds that form a differential zone of development in the area surrounding the test compound on fungal agar plate cultures as compared to normal growth in the surrounding region. Active anti-sporulation compounds are identified based upon the observed suppression of spore formation in the absence of fungal mycelium vegetative growth inhibition. The invention also provides agricultural fungicide and antimycotic compositions, and methods of applying such compositions to control fungal diseases and /or conditions.
The invention comprises a method of combating phytopathogenic diseases on crop plants which comprises applying to the crop plants or the locus thereof being infested with said phytopathogenic disease an effective amount of a combination of
a) a benzophenone of formula I
1
wherein
R
1
is methoxy, methyl, hydroxy, acetoxy or pivaloyloxy,
R
2
is C
1
-C
4
alkoxy or 2-halogenbenzyloxy,
R
3
is C
1
-C
4
alkoxy,
R
4
is C
1
-C
4
alkyl, halogen or trifluoromethyl, and
R
5
is hydrogen, halogen, C
1
-C
4
alkoxy, trifluoromethyl or nitro;
in association with
b) the strobilurin of formula II
2
and a composition comprising fungicidally effective amounts of components I and II. and a composition
本发明包括一种防治作物植物上的植物病原性疾病的方法,该方法包括向受所述植物病原性疾病侵染的作物植物或其基因座施用有效量的以下物质的组合
a) 式 I 的二苯甲酮
1
其中
R
1
是甲氧基、甲基、羟基、乙酰氧基或新戊酰氧基、
R
2
是 C
1
-C
4
烷氧基或 2-卤素苄氧基、
R
3
是 C
1
-C
4
烷氧基、
R
4
是 C
1
-C
4
烷基、卤素或三氟甲基,以及
R
5
是氢、卤素、C
1
-C
4
烷氧基、三氟甲基或硝基;
与下列物质结合
b) 式 II 的石硫合剂
2
和一种由杀真菌有效量的成分 I 和 II 组成的组合物。