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杨树病虫害 Poplar pests and diseases英语短句 例句大全

时间:2020-08-03 21:52:36

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杨树病虫害 Poplar pests and diseases英语短句 例句大全

杨树病虫害,Poplar pests and diseases

1)Poplar pests and diseases杨树病虫害

英文短句/例句

1.The Study on Developing Rule and Occurrence and Control Tecology of Poplar Pests in Xinyang;信阳杨树病虫害发生及防治技术研究

2.Status of Pests and Diseases of Poplar and Management Countermeasures in Jiangxi Province江西省杨树病虫害发生状况及管理对策

3.The Occurrence and Control of Diseases and Pests of Poplar Forest in Bazhou City霸州市杨树片林病虫害的发生与防治

4.The key pests and rat include: nematodiasis of the pines and pine moth, forest rats, defoliator of the poplars, bristletail.二是松毛虫、森林鼠害、杨树食叶害虫等常发性病虫害; 三是小蠹虫、萧氏松茎象等钻蛀性害虫。

5.The blister canker on poplar trunks causd bg Botryosphaeria dothideaarewidely distributed in North China.杨树水泡型溃疡病分布广泛,严重为害杨树。

6.Studies on the Botanicai Insectcides Controlling Poplar Pests植物源杀虫剂等防治杨树害虫试验研究

7.Studies on the Poplar Pest Controll by the Specific Pesticide特异性杀虫剂等防治杨树主要害虫试验研究

8.Research on Major Insect Pests and Their Harm to Ornamental and Afforestation Trees in Yangling Zone;杨凌区园林绿化树木主要害虫及危害性研究

9.Spore Image Recognition of Poplar Disease杨树病害孢子的图像识别技术研究

10.On the Investigation Analysis &Precaution Countermeasure to Yielding Quickly Poplar Pests in Tongren Prefecture;铜仁地区速生杨树害虫的调查分析与防治对策

11.Effects of phytophagous insect induced popular resisitance on the behavior and development of Clostera anachoreta虫害诱导杨树对杨扇舟蛾行为和生长发育的影响

12.Citrus nematodiasis is one of major diseases on citrus plants.柑桔线虫病是柑桔类果树的重要病害。

13.Research on Major Defoliator Pests of Shandong Poplar Forest and Non-pollution Control Technology;山东省杨树主要食叶害虫与无公害防治技术研究

14.This insect attacks the raspberry crop and transmits virus disease.这种蚜虫危害树莓并传播病毒

15.Publishing System of Fruit Tree Diseases and Insect Pests Based on WebGIS;基于WebGIS的果树病虫害信息发布系统

16.The Research and Implementation of the WebGIS-Based Jujube Diseases and Insect Pests Diagnosis System;基于WebGIS的枣树病虫害诊断系统的研制

17.The design of a system for prevention and cure of disease and pest of jujube tree based on IDSS;基于IDSS的枣树病虫害防治系统设计

18.The Regulation Mechanism on the Stem Diseases of Poplar Plantation in Northern China by the Stand and Site Management北方杨树人工林干部病害立地及林分调控机制

相关短句/例句

Poplar pests杨树害虫

1.Damage ofPoplar pests in FuYu County and Its Countermeasures;富裕县杨树害虫发生危害情况及综合治理对策

3)Poplar Diseases杨树病害

1.Poplar Diseases Caused by Septoria mnsiva;壳针孢(Septoria musiva)引起的杨树病害

2.Review of current situation of research and control on poplar diseases in China;我国杨树病害的研究现状与防治

4)defoliator in Populur杨树食叶害虫

1.Trichogramma dendrolimi controldefoliator in Populur field experiment;赤眼蜂防治杨树食叶害虫大田试验

5)poplar stem borer杨树蛀干害虫

6)Persimmon pests柿树病虫害

延伸阅读

杨树蛀干害虫的有效防治在杨树人工林中,以杨干象甲、白杨透翅蛾、青杨天牛三种蛀干害虫发生面积大,危害严重,防治困难。由于蛀干害虫的猖獗危害,致使林木成片死亡,防护林“带断网破”。经过对蛀干害虫多年的综合治理,取得了较好的防治效果,积累了—些经验。对三种蛀干害虫的治理,除要加强苗木产地检疫工作外,还应抓好治理的技术措施和组织管理措施。一、技术措施(一)白杨透翅蛾防治技术措施诱捕时间:在有代表性的林地内,提前诱捕观察。当诱到第—只雄蛾时,即开始大面积防治。诱捕方法:采用涂干钉诱芯法。在用树林中,诱捕点棋盘式设置,0.2公顷—0.3公顷设一个,林缘适当多设没一些。在农防林中150米—200米设一个诱捕点,线形等距离排列。诱芯钉在胶面中央,固定在树干1.3米—1.5米处的向阳面。诱捕点涂两次胶,每次涂20克。在苗圃和幼林中,制一标牌,在其上涂胶钉芯。(二)杨干象甲防治技术措施1.按着适时早防、防后补漏、治轻、治小、治理虫源木的原则,县与县、乡与乡之间有机协调,集中连片,联防联治,以达到防治一片巩固一片,逐步岁扩大保护区,缩小疫区。2.划分灾害类型区,分类施策。设计防治的地块,要掌握在树龄小、被害轻的林分内(树龄在6—8年生以下,被害率在10%以下);对被害重的老林带、孤立木、林中呈团块状分布的要优先设计采伐,清理虫源木。3.栽植诱木,集中除治。4.化学防治,利用杀虫优原液,或氧化乐果50倍液,涂抹虫孔。防治时间在幼虫开始为害、蛀入孔排出木屑开始,必要时进行二次防治。(三)青杨天牛防治技术措施1.营林措施,优化树种结构,营造混交林,形成有一定自控能力的林分结构。对重灾区中无防治价值的大龄林木,优先采伐更新;对中、幼龄林木伐除后,可进行萌芽更新或嫁接更新。2.物理措施,对被害的林木,可进行人工修枝或高干截头,剪除虫瘿,集中烧掉。3.化学防治,利用杀虫优、氧化乐果点涂虫孔或于成虫羽化盛期喷雾防治成虫。二、组织管理措施1.大力宣传贯彻《森林病虫害防治条例》,本着“预防为主,综合治理”的方针及治早、治小、治少的原则,执行“谁经营、谁防治”的责任制度。2.层层签订防治责任制,把防治任务纳入各级领导任期目标,落实责任,层层签订防治承包合同,有奖有罚。没有完成防治任务的或没有达到防治标准的,实行限期除治通知书制度,限期仍没有防治或没达到防治标准的要进行经济处罚。(源自《黑龙江林业》第8期)

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