Cabbage butterfly occurs throughout the world, which mainly causes damage on cruciferae vegetables. The morphology characteristic of cabbage butterfly is introduced, which is also compared with the morphology characte...Cabbage butterfly occurs throughout the world, which mainly causes damage on cruciferae vegetables. The morphology characteristic of cabbage butterfly is introduced, which is also compared with the morphology characteristic of the other insects such as cabbage moth （Plutella maculipennis）, cabbage webworm （Hellula undalis Fabricius）. The occurrence law, living habit and selection of prevention pesticides against cabbage butterfly in China are summarized, which will provide the basic information of cabbage butterfly in China for worldwide further research on cabbage butterfly.展开更多
The pathogen of southern blight, distribution and host species, damage symptoms and infection cycle, and the pathogenic mechanisms are introduced. Based on the introduction, the major factors affected the incidence of...The pathogen of southern blight, distribution and host species, damage symptoms and infection cycle, and the pathogenic mechanisms are introduced. Based on the introduction, the major factors affected the incidence of medicinal plants such as climatic conditions, soil conditions and cultivation conditions, etc. are further summarized, and the studies on the control of southern blight in Chinese medicinal plants are summarized from the aspects of agricultural control, biological control and chemical control, etc.展开更多
Beet armyworm is widely distributed throughout the world,it can cause damage on many kinds of crops. Differences of morphological characteristics among beet armyworm,cabbage butterfly,cotton bollworm,cabbage armyworm ...Beet armyworm is widely distributed throughout the world,it can cause damage on many kinds of crops. Differences of morphological characteristics among beet armyworm,cabbage butterfly,cotton bollworm,cabbage armyworm and Prodenia litura（Fabricius）are compared,occurrence regulation,living habits,damage characteristics and control methods of beet armyworm are introduced.展开更多
文摘Cabbage butterfly occurs throughout the world, which mainly causes damage on cruciferae vegetables. The morphology characteristic of cabbage butterfly is introduced, which is also compared with the morphology characteristic of the other insects such as cabbage moth （Plutella maculipennis）, cabbage webworm （Hellula undalis Fabricius）. The occurrence law, living habit and selection of prevention pesticides against cabbage butterfly in China are summarized, which will provide the basic information of cabbage butterfly in China for worldwide further research on cabbage butterfly.
文摘The pathogen of southern blight, distribution and host species, damage symptoms and infection cycle, and the pathogenic mechanisms are introduced. Based on the introduction, the major factors affected the incidence of medicinal plants such as climatic conditions, soil conditions and cultivation conditions, etc. are further summarized, and the studies on the control of southern blight in Chinese medicinal plants are summarized from the aspects of agricultural control, biological control and chemical control, etc.
文摘Beet armyworm is widely distributed throughout the world,it can cause damage on many kinds of crops. Differences of morphological characteristics among beet armyworm,cabbage butterfly,cotton bollworm,cabbage armyworm and Prodenia litura（Fabricius）are compared,occurrence regulation,living habits,damage characteristics and control methods of beet armyworm are introduced.
