[ Objectives] This study was conducted to investigate the effect of silicon fertilizer on maize growth and Tetranychus truncatus Ehara. [ Methods ] Yougui and Guishen were selected and sprayed onto maize for 1, 2 and ...[ Objectives] This study was conducted to investigate the effect of silicon fertilizer on maize growth and Tetranychus truncatus Ehara. [ Methods ] Yougui and Guishen were selected and sprayed onto maize for 1, 2 and 3 times, forming difference treatments. [ Results ] Spraying the two kinds of silicon fertilizers for different times promoted the growth of plant height, leaf length, leaf width and leaf thickness of maize, increased chlorophyll contents in maize leaves and yield of single ear, and also adversely affected T. truncatus （i. e. , increased the death rate of T. truncatus）. The more the treatment times of silicon fertilizer, the more remarkable the effect, and the higher the adverse effect on T. truncatus. [ Conclusions] In production, spraying silicon fertilizer onto maize for 2 -3 times could realize the purposes of increasing maize yield and alleviating the danlage by T. truncatus.展开更多
[Objectives] This study was conducted to screen out pesticides that are highly effective against Tetranychus truncatus Ehara. [Methods] Nine kinds of pesticides were used to control pests on soybean. A petri dish effi...[Objectives] This study was conducted to screen out pesticides that are highly effective against Tetranychus truncatus Ehara. [Methods] Nine kinds of pesticides were used to control pests on soybean. A petri dish efficacy test was first performed in laboratory,then a leaf efficacy test was performed in a greenhouse,and finally,three kinds of agents with good efficacy in the two tests were selected for field control tests. [Results] The indoor and outdoor test results showed that abamectin was the best agent,which showed efficacy higher than 96%,followed by bifenthrin,whose efficacy was higher than 93%. It can be seen that abamectin is the best choice for the prevention and control of T. truncatus,and bifenthrin can also be used according to the situation. [Conclusions] This study provides a theoretical basis for the control of T. truncatus.展开更多
The situation of occurrence and hazards by Tetranychus truncatus and T. urticae on corns in test garden of Agricultural College of Yanbian University were narrated in detail. The characteristics of distribution and da...The situation of occurrence and hazards by Tetranychus truncatus and T. urticae on corns in test garden of Agricultural College of Yanbian University were narrated in detail. The characteristics of distribution and damage by T. truncates and T. urticae, morphological characteristics, the rule of currencies and its relation- ship with environment were summarized, and the methods of comprehensive treat- ment were put out, which could effectively control the hazard degree of T. truncates and T. urticae on corns.展开更多
基金Supported by College Students' Innovation and Enterpreneurship Traning Program of Yanbian University(ydbksky2017507)
文摘[ Objectives] This study was conducted to investigate the effect of silicon fertilizer on maize growth and Tetranychus truncatus Ehara. [ Methods ] Yougui and Guishen were selected and sprayed onto maize for 1, 2 and 3 times, forming difference treatments. [ Results ] Spraying the two kinds of silicon fertilizers for different times promoted the growth of plant height, leaf length, leaf width and leaf thickness of maize, increased chlorophyll contents in maize leaves and yield of single ear, and also adversely affected T. truncatus （i. e. , increased the death rate of T. truncatus）. The more the treatment times of silicon fertilizer, the more remarkable the effect, and the higher the adverse effect on T. truncatus. [ Conclusions] In production, spraying silicon fertilizer onto maize for 2 -3 times could realize the purposes of increasing maize yield and alleviating the danlage by T. truncatus.
基金Supported by the Cooperative Project Between the People's Republic of China and the Republic of Korea (413090094)。
文摘[Objectives] This study was conducted to screen out pesticides that are highly effective against Tetranychus truncatus Ehara. [Methods] Nine kinds of pesticides were used to control pests on soybean. A petri dish efficacy test was first performed in laboratory,then a leaf efficacy test was performed in a greenhouse,and finally,three kinds of agents with good efficacy in the two tests were selected for field control tests. [Results] The indoor and outdoor test results showed that abamectin was the best agent,which showed efficacy higher than 96%,followed by bifenthrin,whose efficacy was higher than 93%. It can be seen that abamectin is the best choice for the prevention and control of T. truncatus,and bifenthrin can also be used according to the situation. [Conclusions] This study provides a theoretical basis for the control of T. truncatus.
文摘The situation of occurrence and hazards by Tetranychus truncatus and T. urticae on corns in test garden of Agricultural College of Yanbian University were narrated in detail. The characteristics of distribution and damage by T. truncates and T. urticae, morphological characteristics, the rule of currencies and its relation- ship with environment were summarized, and the methods of comprehensive treat- ment were put out, which could effectively control the hazard degree of T. truncates and T. urticae on corns.
