虫情

介绍PVC黄色自粘薄膜和LDPE银色地膜在蔬菜、花卉和其他经济作物植物保护、虫情疫报中的应用。

The applications of yellow PVC film and slivery white LDPE mulching film in vegetable protection and insect prevention are presented .

利用Internet网络技术和网络开发软件，建立了浏览器/服务器应用程序结构体系，实现了棉蚜虫情数据维护、查询、统计、报表和打印等网络数据库管理和预测数据挖掘功能。

Built on Browse / Server ( B / S ) structure system , the main basic . function of database in maintaining , searching , statistic , report and print is developed with Internet technique . Furthermore , the data mining for aphid prediction is done .

树干2m以下带虫量占整株的20.35%，树干下端2m内有虫率达94.79%，因此，在虫情调查时可以调查2m以下的树干来估测全树的虫口密度。

The amount of larvae in the trunk of less than 2 m are 20.35 % of that in the whole trunk , and 94.79 % proportion of the infested tree .

佳多牌虫情测报灯的推广应用

Extend Application on JDP Trap Lamp of Forecast Forest Insect Pest

佳多智能型虫情测报灯对果园害虫监测效果研究

Study on Multi-Pests Forecast Excellent Light for Pest Monitoring Effect in Orchard

在虫情预测预报的研究上缺乏多因子的数学模型；

On the forecast of pest , there is no multi - factor pattern .

微电脑在松毛虫虫情资料档案管理中的应用

Microcomputer Application in File Management of Dendrolimus punctatus

开展蝗虫普查和监测工作，及时掌握虫情；

The survey and monitoring of locust should be carried out to timely master the occurrence situation .

防治指标：当虫情指数为9.504～19.725时，必须用药防治，控制其为害。

The pest had to be controlled by pesticide when the pest damage index was up to 9.504-19.725 .

对1993年虫情作出预报，预报结果与发生实况完全相符。

Occurrence quantity of Sogatella furcifera were forecasted by this method in1993.It coincided completely with prognoses and occurrences .

昆虫的分布型是种群的属性之一，无论在理论生态、虫情预测还是害虫科学治理中，都有十分重要的意义。

Insect distribution type is one of the population attributes , which is of significance either in theoretical ecology or in pest forecast and control .

经过综合防治，可使各代虫情指数、全年综合虫情指数均控制在10%以下。

After the synthetical control , both the insect index of each generation and the synthetical index of each year can be kept below 10 % .

对冠层光谱反射率曲线进行波形分析，微分结果表明，不同虫情、病情反射率的一阶导数变化明显，红边位移不是很显著。

The result of differential spectrum showed that the first derivative had got great changes at near infrared bands , but the red edge position shift not obvious .

运用丰富度指数、多样性指数、均匀度指数及虫情指数，分析不同区域、环线植被和害虫的分布规律。

Main green vegetation in different districts and ring roads and distribution pattern of pests were analyzed using richness index , diversity index , evenness index and pest index .

根据直播稻区稻水象甲种群动态和分布特点，提出了相应的虫情调查和测报防治建议。

Some suggestions for the pest forecast and control were also brought forward based on the characteristics of the pest population dynamics and distribution in the direct seeded rice field .

昆虫数学形态学理论和方法与计算机视觉技术相结合，在害虫虫情监测、昆虫多媒体专家系统的构建等方面具有广阔的应用前景。

Besides , mathematical insect morphology will have so many applicable fields such as to develop automatic pest monitoring system or multimedia expert system of insect identification in the near future .

棉铃虫蛾在双波4号灯下的峰次明显，蛾峰与田间卵峰吻合度好，反映虫情实际；

The moth peaks of Helicoverpa armigera ( Hubner ) are obvious under double-wave trapping light , and coincided with the egg peaks in cotton fields , so it could reflect the real situation of this pest .

雷达荧光屏显示的草地螟峰日迁入群体的时空密度与迁飞方向被做为研究迁飞虫源与迁入虫情的主要依据。

It was used as main bases of the immigration population sources and its occurrence on the immigration area that the density change of time and space of meadow moth migratory population was displayed on the radar screen on the migratory peak days .

用以上3种成份，纯顺式或含有1.5%反式异构体，制成的诱芯在北京郊区和苏州郊区于春季或秋季均可测出蛾高峰，可有效地用于虫情测报。

The traps baited with the ternary mixture , pure or containing 1.5 % ( E ) - isomers , have all been used effectively as a monitoring system for the diamondback moth in spring and autumn in Beijing suburbs and Su Zhou county .

以每梢取基叶、中部叶、顶叶三叶，每株取东、南、西、北、中五个方位梢或任一梢，采用平行跳跃法或随机取样法调查虫情简易而准确。

The type of parallel and random sampling is easy and precise for investigating pest among the eastern , southern , western , northern and middle shoots or any shoot of a tree and among low - , mid - and top-leaves of a shoot .