叶蝉

The present investigations show that Bt rice possesses high efficiencies for controling rice stem borer, yellow stem borer and rice leaf roller, and there are no significant differences in growth and development of non-target organisms, such as rice planthoppers, leafhoppers and predators, and the stability of arthropod community structure between Bt rice and conventional rice paddy habitats.

现有的研究表明，Bt水稻对二化螟、三化螟和稻纵卷叶螟等主要靶标害虫具有较高的抗性水平，对稻飞虱、叶蝉、捕食性天敌等非靶标生物的生长发育和稻田节肢动物群落的稳定性无明显影响。

One can estimate the length of the stylet sheaths of several cicadellid species feeding on sorghum and clover.

人们能够估计那些以高梁和三叶草为食的几种叶蝉类螯针鞘的长度。

Titanus in Europe as the source data, the above three bioclimatic variables as parameters, BIOCLIM as algorithm, the distribution of S. titanus in North American was analyzed in order to test whether these parameters are appropriate or not. The results revealed that the Great Lakes region of USA and Canada and the Finger Lakes region of New York State were the best habitat for S.

结果表明：以月平均温、最冷月最低温和最热月最高温变量为参数，以欧洲的已知分布为源数据，用 BIOCLIM 算法可以准确预测出包括美国和加拿大的大湖区和纽约州的芬格湖群在内的大片区域是葡萄带叶蝉在北美洲的适生区。

There are a total of 34,782 individuals belonging to 15 orders, 102 families were found in this study. And the dominant groups among them were Myriapoda、Lycosidae、Miridae、Delphacidae、Cicadellidae、Aphidoidea、Margarodidae、Geometridae、Noctuidae、Olethreutidae、Braconidae、Chrysopidae、Coccinellidae.

调查共发现节肢动物个体34782个，分属3纲、15目、102科，其中优势类群主要是多足纲、蛛形纲狼蛛科、半翅目异翅亚目的盲蝽科，同翅目的飞虱科、叶蝉科、蚜科、蚧科，鳞翅目的尺蛾科、夜蛾科、小卷蛾科，膜翅目的小茧蜂科、小蜂总科，脉翅目草蛉科、鞘翅目瓢虫科。

The ascendancy community was Calliphoridae. Herbivore\'s ascendancy communities were Oides decempunctata, predator\'s were Erigonidium graminicola Sundeall, parasite\'s and neutrality\'s were Calliphoridae.3、The seasonal dynamics overall change of community\'s individual numbers, species, relative abundance were basically consistent. All of them conformed to the wavy development trend of increasing -descending-suden increasing-descending-increasing.

总群落上风种群均为红头丽蝇，植食类亚群落均为葡萄十星叶蝉，捕食类为草间小黑，寄生及中性类为红头丽蝇。3、各处理总群落个体数、物种数和相对丰富度的季节动态总体变化基本一致，都满足增长—下降—忽然增长—下降—增长的波浪形的发展趋势。

Better prevention and control of pesticides will be marked with objects, such as imidacloprid, Actara, Le Meridien, for sucking mouthparts of the aphid, whitefly, leafhopper, canarium; 15% more than for the control of anti-ADM Alternaria mali disease, pear black spot disease; Celest Fusarium, Rhizoctonia diseases caused by a high control effect; Diflubenzuron Insect Growth Regulators such as applied to control pests and moths Phyllocnistis Mosquitoes pest, Avermectin streptozotocin on the type of anti-mite efficient.

好农药都会标明防治对象，如吡虫啉、阿克泰、艾美乐，适用于刺吸式口器的蚜虫、粉虱、叶蝉、木虱；15%多抗霉素用于防治苹果斑点落叶病、梨黑斑病；适乐时对镰刀菌、丝核菌引起的病害具有很高的防效；灭幼脲等昆虫生长调节剂适用于防治潜叶蛾类害虫和蚊类害虫，阿维菌素对叶螨类防效高。

A total of 19,781 insect individuals belonging to 959 morphospecies, 145 families and 15 orders were collected. The most abundant orders were Diptera (69.68%), Homoptera (11.19%) and Hymenoptera (10.10%). At the family level, Chironomidae (17.67%), Mycetophilidae (12.32%), Cicadellidae (8.32%), Ceratopogonidae (7.56%), Sciaridae (7.39%) and Cecidomyiidae (5.81%) were the most abundant taxa. Although there were little differences in similarity among the three sampling plots, the dominant orders and families in theses plots differed. The meadow had the highest diversity while the spruce forest had the lowest diversity.

结果：三样区共采集到19，781只昆虫，分属15目、145科、959个形态种；各目的组成百分比，以双翅目(69.68%)、同翅目(11.19%)及膜翅目(10.10%)最为优势；在科的类阶，则是以摇蚊科(17.67%)、蕈蚋科(12.32%)、叶蝉科(8.32%)、糠蚊科(7.56%)、黑翅蕈蚋科(7.39%)及瘿蚋科(5.81%)为优势类群；三个样区的相似度差异不大，但是优势类群则不相同；无论丰度、均匀度及多样性指标，箭竹草原样区均高过於云杉林样区及铁杉林样区。

The result showed that there was obvious difference between nymphal density of Erythroneura apicalis Nawa and the leaf damage index of various grape varieties.

结果表明，不同葡萄品种之间葡萄斑叶蝉的虫口密度与叶片被害指数差异明显，经方差分析达极显著水平。

The contents of lysine, alanine and arginine among 17 kinds of amino acids had been identified to be opposite correlation with the leaf damage index (r=-0.9389, P.05; r=-0.8925, P.05; r=-0.8905, P.05) respectively. But nymphal density of Erythroneura apicalis Nawa had no significant relationship with 17 kinds of amino acids.

在17种氨基酸中，葡萄斑叶蝉的虫口密度与各氨基酸的含量无显著相关关系，但叶片被害指数与赖氨酸、丙氨酸、精氨酸的含量呈负相关关系(r=-0.9389， P.05； r=-0.8925， P.05； r=-0.8905， P.05)。

Any of various green insects of the family Tettigoniidae related to the grasshoppers and the crickets,the male of which produces a shrill sound by rubbing together specialized organs on the forewings.

树螽与蚱蜢、蟋蟀同属叶蝉科的一种绿色昆虫，雄螽的前翅上有一种独特器官，摩擦时产生一种尖锐声音

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。