Life circle and bionomics ofLymantria dispar L.

The life circle and bionomics ofLymantria dispar was studied from the May to the July of 1997 in Tulihe Forestry Enterprise of Inner Mongolia. The results showed thatL. dispar has one generation in a year, larvae overwinters in eggs, and last 50 days to grow up. From the completing of larvae period to the appearing of adults lasts 11 days. The study made a basis for the period forecasting of L.dispar in Inner Mongolia.     

舞毒蛾化蛹阶段自然控制作用初步调查

舞毒蛾是世界范围内的重要森林食叶害虫,取食多种阔叶和针叶树木。为了解舞毒蛾在我国危害较轻的原因,作者在林间设立样方,调查下树将要化蛹的舞毒蛾老熟幼虫的死亡率及致死因素,蛹的死亡率及致死因子。发现病毒是导致老熟幼虫死亡的主要因子,死亡率高达96.6%。蛹的致死因子较多,其中一种皮蠹取食导致的致死率较高,达到58%,舞毒蛾黑瘤姬蜂的致死率也较高。研究表明,舞毒蛾化蛹阶段致死因子及死亡率较高,可能是舞毒蛾发生危害较轻的原因之一。     

甲氧虫酰肼对舞毒蛾幼虫解毒酶及其体内蛋白质表达的影响

为研究甲氧虫酰肼(RH-2485)对舞毒蛾幼虫的杀虫活性,采用叶片药膜法测定该药剂对舞毒蛾不同龄期幼虫的生物活性及对其体内解毒酶活性的影响,并通过SDS-PAGE对舞毒蛾幼虫不同组织的蛋白质表达进行检测。结果表明:甲氧虫酰肼对舞毒蛾2～6龄幼虫均表现出较高活性,其中对2,3龄幼虫毒性最强,说明甲氧虫酰肼对舞毒蛾幼虫的影响存在明显的龄期差异。该药剂对2,4,6龄幼虫体内的羧酸酯酶、多功能氧化酶O-脱甲基和谷胱甘肽S-转移酶等主要解毒酶存在显著影响,表现为诱导、抑制作用;在不同的处理时间,对这些酶的影响存在明显差异。舞毒蛾4龄幼虫经甲氧虫酰肼处理后,血淋巴、中肠及表皮组织中均发现与对照组有差异的蛋白,其中处理12h和24h时,对血淋巴和中肠组织中的蛋白质影响比较明显,48h后,对表皮组织中的蛋白质表达的影响较为显著。甲氧虫酰肼作为非甾醇类蜕皮激素竞争物中的新型化合物,能干扰舞毒蛾幼虫体内主要解毒酶活性,诱导血淋巴、中肠和表皮组织中产生特异蛋白,从而影响舞毒蛾正常的生理代谢,起到毒杀作用,可有效防治舞毒蛾。     

POPULARIZATION STUDY ON THE CHEMICAL CONTROL OF COLEOPHORA DAHURICA FLKV. BY ULV SPRAYING MALATHIOR

INTR0DUCTIONLarchcasebearer(ColeoPhoradahuricaFlkv)isdistributedinNortheastandeasternpartofIrmerM0ngoliaandcausesseriousdamageintheareas.Larchcasebearerlivedonegenerationinayear,liesdormancyinwin-terat3-4larvaeinstar.Damagetothetfeeismainlycausedbyoverwinteringlarvae.75%0fdefoliatedamountwascausedafterlOdays0fdormancyreleased.Fordamagedneedleonlyepidermisisleft.ItlookslikesilverflowersbloominthetreeinspringandtheWholetreetrisyell0winaut-timn.Whenhalfneedlewaseaten.tI1ewoodlossisl.2lm'…     

Popularization study on the chemical control ofColeophora dahurica flkv. by ULV spraying malathior

The control ofColeophora dahurica Flkv. by ULV spraying rare oil of malathior was popularized in Inner Mongolia Daxing’an Mountains in 1992–1993. The control area was 32744.3 hm², which was 98.2% of the suitable control area in Inner Mongolia Daxing’an Mountains and 75% of the suitable area in Inner Mongolia respectively. Dosage was 1125 g/hm². Control effectiveness was above 95%; the larvae density decreased from 52.5 to 0.94 per 50cm sample twig and direct economical benefit was 3,935,420 Chinese yuan.     

小果黑核桃引种试验及繁殖技术研究

由河南省洛宁县引入小果黑核桃嫁接苗及种子在内蒙古进行试验，对其植物学特性、生长规律、适应性、繁殖技术做研究表明，该种较适应本区南部气候条件，苗期加强保护，后期管理措施得当，生长稳定，可适时开花结实，本种引种成功为在本地区继续引种研究黑核桃组中其他品种积累了技术资料。作为耐盐碱性强的树种，建议在内蒙古西部相应区域做中试试验。     

细穗柽柳播种育苗技术初探

细穗桂柳是巴彦淖尔市的一个乡土树种,是内蒙古自治区林木审定委员会审定的优良树种,它的适宜栽培区域为内蒙古水湿盐碱地区及我国北方类似工区,细穗桂柳植株形态优美、花色丰实、艳丽,花期长,单株花期20 d左右,群体花期40 d左右。细穗桎柳具有槿柳属树种的全部耐性和抗性,特别是能够在中、重盐碱地、低湿地和干旱地区正常生长。文章对细穗怪柳播种发育技术进行了研究,为盐碱地造林提供基础。     

A PRELIMINARY STUDY ON THE BIOLOGY OF CYDIA ILLUTANA DAHURICOLANA IN THE NORTHEAST OF CHINA(LDPIDOPTERA:TORTRICIDAE)

The tortricid moths damdging Dahurian Larch(larix gmelini Rupr.)cone weresurveyed in a matural larch forest in Wurjihan in the eastern parrt of Inner Mongolia,China from 1988 to 1989,and the population dynamics of the moth is investigated inKuduer.Jiwen and other neighbor areas.The tortricid moth was identified to be Cydiaillutana dahuricolana(V.I.Kuznetzov),the first recored in China.It has one generation ayear,and overwinters in pupae in the eastern part of Inner Mongolia.The characteristics ofthe larvae and pupae are descrbed in detail,its life habit and damaging are preliminarilystudied.The differences of its occurence in different areas are disscussed by combining withmeteorological factors.     

内蒙古沙棘木蠹蛾风险分析

沙棘木蠹蛾是以危害沙棘为主的一种钻蛀性害虫，是我国公布的第一批林业危险性有害生物之一。从在内蒙古的分布状况、潜在的危险性、寄主植物的经济重要性、传播扩散的可能性和危险性管理难度等方面对沙棘木蠹蛾进行了风险分析，结果表明沙棘木蠹蛾在内蒙古自治区属高度危险性有害生物，对内蒙古的生态系统、水土保持及农林经济具有一定的危险性，须采取有效措施控制其危害和扩散。     

A preliminary study on the biology ofCydia illutana dahuricoiana in the northeast of China

The tortricid moths damdging Dahurian Larch (larix gmelini Rupr.)cone were surveyed in a matural larch forest in Wurjihan in the eastern parrt of Inner Mongolia, China from 1988 to 1989, and the population dynamics of the moth is investigated in Kuduer, Jiwen and other neighbor areas. The tortricid moth was identified to beCydia illutana dahuricolana (V. I. Kuznetzov), the first recored in China. It has one generation a year, and overwinters in pupae in the eastern part of Inner Mongolia. The characteristics of the larvae and pupae are descrbed in detail, its life habit and damaging are preliminarily studied. The differences of its occurence in different areas are disscussed by combining with meteorological factors.     

德兴市苗圃地发现杉木缩顶病危害

德兴市苗圃地发现杉木缩顶病危害杉木缩顶病Ｐｅｓｔａｌｏｔｉｏｐｓｉｓｑｕｅｐｉｎｉ是新增补的国内森林植物检疫对象。江西省德兴市森防站在今年１０月苗木产地检疫调查中，在当年杉木苗上发现了杉木缩顶病危害。感病苗木的主梢顶芽坏死后，下方不定芽不断产生不断坏...     

Biological characteristics of <Emphasis Type="Italic">Acanthocinus carinulatus</Emphasis>, a new record insect pest in Aershan,Inner Mongolia

Biological characteristics of a new record pest insect Acanthocinus carinulatus Gebler has been reported in China. During the last few years, outbreaks of this insect in larch （Larix gmelinii Rupr.） plantations of Aershan, Inner Mongolia have occurred. Each year one generation is born. The insects only damage the phloem in L. gmelinii, overwinter in galleries as larvae and pupate in May of the following year. The pupation culminates in late May. The pupal phase lasts about 45 d. Adults emerge in early June and require nutrition after emergence. Mating and oviposition occur from late June to early August and the adult males and females and may copulate many times in their lifetime. The female adults lay eggs in bark crevices. Oviposition sites with one egg occupy 70.5% of all sites, sites with three eggs occupy 6.8% and 22.7% of all crevices are without eggs. Eggs stay in this stage for a period of 7 to 11 d. Larvae hatch in early July and hibernate in early September. The rate of successful hatching is only 37.8%.     

满洲里地区枣球蜡蚧发生危害调查

枣球蜡蚧是满洲里榆树上的主要害虫,以若虫和雌性成虫严重危害榆树。为了掌握该虫发生规律,对其展开了调查研究。研究结果,满洲里7个地区平均虫口密度为3.57个/10 cm,平均有虫株率为57.86%。危害最严重和最轻的地区分别是203国道和机械化林场,危害指数分别为30.2和0。不同地区枣球蜡蚧有虫株率图显示,由远方中学到机械化林场这7个地区枣球蜡蚧发生规律可能与榆树种植区地理方位有关,本次调查研究为今后防治杏球坚蚧提供有效的数据依据。     

内蒙古贺兰山大型真菌资源现状及开发建议

文章根据2012年真菌科学考察采集到的标本,根据传统分类学方法,对内蒙古贺兰山真菌资源状况进行了鉴定.研究结果显示:研究区共有真菌262种,隶属于7目27科79属,真菌多样性丰富;其中食用菌占全部真菌种类的一半以上,药用菌和毒菌资源分别占24.81%和15.27%.最后对开发真菌资源给出了建议.     

沙棘绕实蝇的生物学习性

[目的]沙棘绕实蝇严重危害沙棘果实,使沙棘种植地蒙受巨大经济损失。研究其生物学习性,可以为有效监测和控制沙棘绕实蝇提供理论指导。[方法]通过室内人工饲养和野外观察,研究沙棘绕实蝇的羽化、交尾、产卵、化蛹等生物学习性和野外发生动态。[结果]沙棘绕实蝇成虫在野外从6月中旬至8月上旬均可见到,发生量受天气影响较大;成虫主要集中在6:00—10:00羽化,羽化量占当日羽化量的81.3%,羽化高峰出现在8:00—9:00;化蛹时间主要集中在凌晨0:00—6:00,尤其是3:00—6:00钻出果实化蛹的幼虫数量较多,与其它时间段有明显差异;交尾时间主要集中在白天光照比较强的时间段,一天当中有两次交尾高峰,分别出现在12:00—13:00和16:00—17:00,交尾平均持续时长为239±11.86 min;沙棘绕实蝇产卵期沙棘果长径6.65±0.28 mm,宽径5.47±0.40 mm,一果只产一卵。[结论]沙棘绕实蝇在内蒙古磴口地区一年发生一代,幼虫钻蛀果实,蛹隐藏在地下,成虫期较短,防治工作应集中在成虫期进行。     

赤峰市油松人工林地位指数表编制研究

以赤峰市油松人工林为研究对象,设置251块人工林油松标准地以获取数据,对10种常用的导向曲线模型进行拟合,选择对数曲线式为最优导向曲线模型,相关指数达到了0.9957,离差平方和、相对误差等指标均较小。选定的导向曲线模型为H=-2.7021+0.0734A+2.3125×LgA,基准年龄为30年,级距为1m。采用标准差调整法编制了地位指数表。经卡方检验、散点检验和解析木检验证明,所编表合格、精度较高,可以用来评价油松人工林的立地质量。     

虫生真菌在准格尔旗沙棘木蠹蛾上的流行

为了了解沙棘木蠹蛾Holcocerus hippophaecolus幼虫的虫生真菌的物种多样性和流行情况,对内蒙古准格尔旗某沙棘林中的虫生真菌进行了调查,采集到11个虫生真菌标本。经实验室显微观察鉴定,其中1个为雷州被毛孢Hirsutella leizhouensis侵染,1个为一种被毛孢Hirsutella sp.侵染,9个为球孢白僵菌Beauveria bassiana侵染;分离纯化得到7株球孢白僵菌菌株。     

内蒙古沙产业可持续发展SWOT分析

沙产业对内蒙古生态改善和经济发展具有重要意义,文章通过SWOT分析,对内蒙古沙产业可持续发展的优势、劣势、机遇和威胁展开研究,结果表明,内蒙古沙产业发展优势明显,劣势有待改善,处于机遇与挑战并存阶段,进一步提出沙产业可持续发展建议,为内蒙古荒漠化地区沙产业发展规划提供理论依据。     

内蒙古图牧吉国家级自然保护区雁形目鸟类时空分布特征

文章以了解分析内蒙古图牧吉国家级自然保护区雁形目鸟类种类及分布特征并更好地保护管理的目的,于2017年4月至2018年1月份春、夏、秋、冬四个季节,采用样线和样点统计法,对保护区图牧吉泡子和三道泡子两处湖泊湿地雁形目鸟类种类和数量进行调查统计。结果显示:共观察记录到雁形目鸟类22种,隶属于1科8属。图牧吉泡子和三道泡子分别观察到19种和14种。两处湖泊湿地之间距离虽然较近,但雁形目鸟类种类有较大的区别,其中图牧吉泡子不仅种类多,而且珍稀濒危物种的分布也较集中。保护区雁形目鸟类时空分布特征与两处湖泊湿地各自食物资源、隐蔽条件和人为干扰程度有关外也与鸟类本身的迁徙规律和种间竞争有着密切关系。