瘤瘿螨属四新种一新亚种记述(蜱螨亚纲:瘿螨科)

本文记述的四个新种是木樨瘤瘿螨Aceria osmanthis Kuang,燕麦瘤瘿螨Aceria avenae Kuang et Zhang,江苏瘤瘿螨Aceria jiangsunensis Kuang和昆明瘤瘿螨Aceria kunmiaensis Kuang et Hong,新亚种是中华柑桔瘤瘤螨Aceria sheldoni chinensis Kuang et Hong。     

中国瘿螨科三新种记述(蜱螨亚纲:瘿螨总科)

记述瘿螨科Ｅｒｉｏｐｈｙｉｄａｅ３新种：瘿螨亚科Ｅｒｉｏｐｈｙｉｄａｅ的相瘤瘿螨Ａｃｅｒｉａ ｃｅｌｔｉｄｉｓ Ｚｈａｏ ｅｔ Ｋｕａｎｇ,ｓｐ．ｎｏｖ．;叶刺瘿螨亚科Ｐｈｙｌｌｏｃｏｐｔｉｎａｅ的无花果中瘿螨Ｓｉｎａｃｕｓ ｃａｒｉｃａｅＺｈａｏ ｅｔ Ｋｕａｎｇ,ｓｐ．ｎｏｖ．和柳顶冠瘿螨Ｔ ｅｇｏｌｏｐｈｕｓ ｓａｌｉｃｉｓ Ｋｕａｎｇ ｅｔ Ｚｈａｏ,ｓｐ．ｎｏｖ．。display structure     

椰子叶螨Aceria(Eriophyes)guerreronis对我国椰子产业的风险性分析

[目的]明确刺吸式害虫椰子叶螨对我国椰子产业的风险,为该虫的检验检疫和应急防控提供参考.[方法]从椰子叶螨的国内外发生现状、潜在危害性、受害作物的经济重要性、定殖扩散的可能性以及风险管理的难度等方面,对椰子叶螨危害我国椰子产业的风险性进行定性和定量评估.[结果]椰子叶螨个体较小、传播方式多样、检疫和灭除难度较大,根据有...     

Survival of five wheat curl mite,Aceria tosichilla Keifer (Acari:Eriophyidae), strains on mite resistant wheat

The survival of the wheat curl mite (WCM), Aceria tosichilla Keifer, on five sources of resistant wheat (Triticum aestivum L.) was determined for collections of mites from Kansas (including a strain adapted to TAM 107), South Dakota and Texas, USA and Alberta, Canada. Sources of resistance to Aegilops squarrosa L. and Agropyron elongatum (Host) were resistant to WCMs from South Dakota and Alberta, but susceptible to WCMs from Kansas and Texas. Two wheats with resistance to rye (Secale cereale L.), PI 475772 and TAM 107, were resistant to all WCM collections except the strain from Kansas that was selected for adaptation to TAM 107. A common wheat (PI 222655) was resistant to all WCM collections except the one from Alberta, Canada. Because WCMs have overcome the resistance of TAM 107 in Kansas, the only resistance now available in commercial cultivars may be lost. Results indicate that PI222655 is the best source of resistance to replace TAM 107 in the USA but it may not be effective in Canada. Resistance to Ae. squarrosa and A. elongatum could be deployed against WCMs in Alberta and South Dakota but these sources may not be effective in Kansas and Texas. However, one WCM collection from each location may not represent the general mite population of an area. Therefore, any new sources of resistance should be evaluated fully against WCMs from areas where they are likely to be used in commercial cultivars.     

Rearing of coconut mite Aceria guerreronis and the predatory mite Neoseiulus baraki in the laboratory

A method was developed for the rearing of coconut mite, Aceria guerreronis Keifer (Acari: Eriophyidae), and its predatory mite Neoseiulus baraki (Athias-Henriot) (Acari: Phytoseiidae) on embryo culture seedlings of coconut (Cocos nucifera) in the laboratory. Seedlings in the ages of <2, 2–4 and 4–6 months were infested with 75 field-collected coconut mites and the population growth was determined up to six weeks after introduction. The populations of coconut mites increased exponentially up to five weeks after introduction and declined thereafter on seedlings of all ages with significant differences among the three groups of seedlings occurring over time. At week 5, a significantly higher mean number (±SE) of coconut mites (20,098 ± 3,465) was bred on 4–6-month-old seedlings than on smaller seedlings, and on the largest seedlings the numbers were highest at all time intervals, except at week 2. Neoseiulus baraki was reared on embryo culture seedlings of the three age groups infested with coconut mites, by introduction of five female deutonymphs and one male, three weeks after introducing coconut mites. Predator numbers progressed significantly over time, but the size of seedlings did not significantly influence the numbers. On all groups of seedlings, the mean number of N. baraki increased up to two weeks after introduction on to seedlings and then declined. Many coconut mites were successfully reared in the laboratory for a longer period by this method and it could also be used as an alternative method to rear N. baraki. Development of this method may contribute to the progress of studies on the biology and ecology of coconut mite and its interactions with natural enemies.     

Anatomical Injury Induced by the Eriophyid Mite Aceria anthocoptes on the Leaves of Cirsium arvense

Anatomical injury of the leaves of the invasive species, Cirsium arvense (L.) Scop., caused by the eriophyid mite Aceria anthocoptes (Nal.), which is the only eriophyid mite that has been recorded on C. arvense worldwide, is described. The injury induced by the mite feeding on the leaves of C. arvense results in visible russeting and bronzing of the leaves. Other conspicuous deformations are folding and distortion of the leaf blade and curling of leaf edge, as well as gradual drying of leaves. The anatomical injury of the mature leaves of field-collected plants was limited to the epidermis of the lower leaf surface. However, on young leaves of experimentally infested plants, rust mite injuries extend to epidermal cells on both leaf surfaces and to those of deeper mesophyll layers. On these leaves, lesions on the lower leaf surface even affected the phloem of the vascular bundles. Leaf damage induced by A. anthocoptes is discussed with regard to the mite’s potential as a biological control agent of C. arvense.     

枸杞木虱成虫携带瘿螨越冬

多年来一直认为枸杞瘿螨Aceria pallida Kefer以成螨在树皮缝和芽缝内越冬,我们在宁夏中宁最新调查发现,大量瘿螨若螨潜伏于枸杞木虱越冬成虫体壁缝隙,尤其以后足基节与腹部缝隙最多。初步调查结果显示,越冬枸杞木虱Poratrioza sinica Yang et Li成虫雌性和雄性成虫均携带瘿螨成螨和若螨,平均2~3头,最多的可达30头。如果枸杞瘿螨随枸杞木虱越冬成虫越冬成为主要途径,那么对枸杞木虱越冬成虫的防治将成为控制枸杞瘿螨危害的重要防治策略和技术手段。     

Field assessment of host plant specificity and potential effectiveness of a prospective biological control agent, Aceria salsolae, of Russian thistle, Salsola tragus

The eriophyid mite, Aceria salsolae de Lillo and Sobhian, is being evaluated as a prospective classical biological control agent of invasive alien tumbleweeds, including Salsola tragus, S. collina, S. paulsenii and S. australis, in North America. Previous laboratory experiments to determine the host specificity of the mite indicated that it could sometimes persist and multiply on some nontarget plants, including Bassia hyssopifolia and B. scoparia. These are both European plants whose geographic range overlaps that of the mite, but the mite has never been observed on them in the field. A field experiment was conducted in Italy to determine if the mite would infest and damage these plants under natural outdoor conditions. The results indicate that this mite does not attain significant populations on these nontarget plants nor does it significantly damage them. Salsola tragus was heavily infested by A. salsolae, and plant size was negatively correlated to the level of infestation. Although S. kali plants were also infested, their size did not appear to be affected by the mites. The other nontarget plants were not as suitable for the mite in the field as in previous laboratory experiments. We conclude that there would be no significant risk to nontarget plants as a result of using A. salsolae as a biological agent to control Salsola species in North America.