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海南腰果病虫害及其防治 总被引：2，自引：0，他引：2
对海南腰果病虫害的发生为害和分布情况进行调查,发现为害海南腰果的害虫有28种,病害有6种。主要害虫有腰果角盲蟠、腰果细蛾、咖啡胖天牛、脊胸天牛;主要病害是流胶病。笔者还对主要腰果病虫害提出了相应的防治措施。 相似文献
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本文记载了为害咖啡树干的咖啡灭字虎天牛、艳虎天牛、海南灰天牛、旋皮锦天牛及为害可可树干的龟背天牛幼虫形态,可供鉴定这类害虫时参考。 相似文献
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本文记载了为害橡胶木材的隶属于锯天牛亚科和天牛亚科害虫,它们是海南密齿天牛、皱胸闪光天牛、牙斑额天牛和长角凿点天牛的幼虫形态特征,可作为鉴定这些害虫的依据。 相似文献
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本文记述了经过鉴定的薄翅天牛属的毛角薄翅天牛、薄翅锯天牛、海南薄翅天牛以及桔根锯天牛和深斑灰天牛的幼虫形态特征。这些天牛幼虫都是橡胶树根、茎及其他热带作物很重要的害虫。 相似文献
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本文记载了严重危害樟树的红蒜角天牛、樟密缨天牛、吉安筒天牛和黑缘彤天牛的幼虫形态。红蒜角天牛和黑缘彤天牛是樟树害虫的新纪录,本文对它们的生物学特性作了简单的记载,以供鉴定和控制这类害虫为害的参考。 相似文献
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天牛在龙眼荔枝的发生为害及防治沈育才（诏安县农业局３６３５００）天牛是龙眼、荔枝的重要害虫，主要有龟背天牛和星天牛等，均属于鞘翅目，天牛科．近年来，在龙眼、荔枝发生普遍，为害日趋严重，笔者对其不同虫态发生为害情况进行观察并提出防治方法．１、害虫来源为... 相似文献
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海南岛两种热带果树害虫记述 总被引：11，自引：0，他引：11
记录了海南岛人心果害虫11种、木菠萝害虫15种, 并对人心果主要害虫人心果云翅斑螟及黑网珠蜡蚁、木菠萝主要害虫榕八星天牛及黄翅绢野螟的形态、生物学作了记述 相似文献
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通过对海南昌江和白沙县4种菊科外来入侵杂草的调查发现,飞机草、假臭草和蟛蜞菊分布广泛、危害严重;从4种外来杂草上共分离获得7种病原真菌,分别为:侵染假臭草的链隔孢(Alternaria sp.)、飞机草的炭疽菌(Colletotrichum sp.)、飞机草的泽兰尾孢(Cerospora eupatorii Peck.)、飞机草的链格孢(Alternaria sp.)、胜红蓟的弯孢(Curvularia sp.)、蟛蜞菊的链隔孢(Alternaria sp.)和蟛蜞菊的炭疽菌(Colletotrichum sp.),这些病原菌的生防潜力有待进一步研究。 相似文献
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海南常见杂草病原真菌资源调查及初步鉴定 总被引：2，自引：1，他引：1
通过对海南部分地区常见杂草病原真菌初步镜检,分离培养,共鉴定出17种杂草上的21种病原真菌。它们是香附子(Cyperus rotundus L)、白茅[Imperata cylindrical(L.)]、异型莎草(Cyperus difformis L.)和一点红[Emilia sonchifolia(L)DC.]上的夏孢锈菌(Uredo sp.);车前草(Plantago asiatica L)、土牛膝(Achyrantnes aspera L)、大飞扬草(Euphorbia hirta L)、象鼻草(Helioeropium indicum L)的粉孢属(Oidium sp.);飞机草(Eupatoriumodora-tum L)的泽兰尾孢(Cerospora eupatorii Peck.)、刺盘孢(Colletotrichum sp.);青葙(Celosiaar gentea L)的交链孢(Alternaria sp.);马唐草(Digitaria sanguinalis(L)Scop)的长蠕孢霉(Helminthosporium sp.)、弯孢霉(Curvularia sp.)、夏孢锈菌(Uredo sp.)、黑孢霉(Nigrospora sp.);野茼蒿(Gynura crepidioides Benth)的交链孢霉(Alternaria Nees sp.)、银花苋(Gomphrena globosa L)的弯孢霉(Curvularia sp.);粗叶耳草(Hedyotis hispida Retz)的弯孢霉(Curvularia sp.);水葫芦(Eichhornia crassipes)的刺盘孢(Colletotrichum sp);牛筋草(Eleusine indica(L.)Gaertn.)的长蠕孢霉(Helminthosporium sp.)以及三叶鬼针草上的黑孢霉(Nigrospora sp.)。 相似文献
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调查不同生态类型大豆田的豆秆黑潜蝇，饲育出８种寄生蜂，其中豆秆蝇瘿蜂等６种为主要种群。测定了这６种的生态位宽度、生态位重叠和生态位相似性比例指数，其中豆秆蝇瘿蜂生态位宽度指数最高（０．７６９５），豆秆蝇瘿蜂对黑绿金小蜂生态位重叠指数最高（０．０５０７），黑绿金小蜂对长腹金小蜂相似性比例指数最高（０．８７９３）。按生态位概念进行全面分析，豆秆蝇瘿蜂为控制豆秆黑潜蝇效能最高的种类。 相似文献
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Multigene phylogeny and mating tests reveal three cryptic species related to Calonectria pauciramosa
Calonectria pauciramosa is a pathogen of numerous plant hosts worldwide. Recent studies have indicated that it included cryptic species, some of which are identified in this study. Isolates from various geographical origins were collected and compared based on morphology, DNA sequence data of the β-tubulin, histone H3 and translation elongation factor-1α regions and mating compatibility. Comparisons of the DNA sequence data and mating compatibility revealed three new species. These included Ca. colombiana sp. nov. from Colombia, Ca. polizzii sp. nov. from Italy and Ca. zuluensis sp. nov. from South Africa, all of which had distinguishing morphological features. Based on DNA sequence data, Ca. brasiliensis is also elevated to species level.Taxonomic novelties: Calonectria brasiliensis (Bat. & Cif.) L. Lombard, M.J. Wingf. & Crous, comb. nov., Calonectria colombiana L. Lombard, Crous & M.J. Wingf., sp. nov., Calonectria polizzii L. Lombard, Crous & M.J. Wingf., sp. nov., Calonectria zuluensis L. Lombard, Crous & M.J. Wingf., sp. nov. 相似文献
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Bark beetles (Coleoptera: Scolytinae) are well-recognized vectors of Ophiostoma species. Three non-native bark beetle species infest various Pinus species in South Africa, and they are known to carry at least 12 different species of ophiostomatoid fungi. Some of these fungi have not been identified to species level. The aim of this study was to determine or confirm the identities of Ophiostoma species associated with bark beetles in South Africa using comparisons of DNA sequence data. Identities of Ophiostoma ips, O. floccosum, O. pluriannulatum, O. quercus and O. stenoceras were confirmed. Ophiostoma abietinum, O. piliferum and Pesotum fragrans are recognised for the first time and the new species, O. aurorae sp. nov., is described from pine-infesting bark beetles in South Africa.Taxonomic novelty: Ophiostoma aurorae X.D. Zhou & M.J. Wingf. sp. nov. 相似文献
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植物寄生线虫是导致马铃薯减产和影响马铃薯品质的原因之一,但目前黑龙江省尚未开展相关研究。自2012年以来,在黑龙江省共调查了14个县（市）的马铃薯种薯田,采集土壤样品107份,初步鉴定出植物寄生线虫8个属,其中针属线虫（Paratylenchus sp.）和螺旋属线虫（Helicotylenchus sp.）为黑龙江省马铃薯种薯田植物寄生线虫的优势种群,并分析了其地理分布特点。在黑龙江省发现短体属线虫,其属于重要农业生产的植物寄生虫。 相似文献
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Elin Julianti Ikram Ammar Abrian Marlia Singgih Wibowo Muhammad Azhari Nadya Tsurayya Fauzia Izzati Ario Betha Juanssilfero Asep Bayu Siti Irma Rahmawati Masteria Yunovilsa Putra 《Marine drugs》2022,20(1)
Colorectal cancer is one of the most common cancers diagnosed in the world. Chemotheraphy is one of the most common methods used for the pharmacological treatment of this cancer patients. Nevertheless, the adverse effect of chemotherapy is not optimized for improving the quality of life of people who are older, who are the most vulnerable subpopulation. This review presents recent updates regarding secondary metabolites derived from marine fungi and actinobacteria as novel alternatives for cytotoxic agents against colorectal cancer cell lines HCT116, HT29, HCT15, RKO, Caco-2, and SW480. The observed marine-derived fungi were from the species Aspergillus sp., Penicillium sp., Neosartorya sp., Dichotomomyces sp., Paradendryphiella sp., and Westerdykella sp. Additionally, Streptomyces sp. and Nocardiopsis sp. are actinobacteria discussed in this study. Seventy one compounds reviewed in this study were grouped on the basis of their chemical structures. Indole alkaloids and diketopiperazines made up most compounds with higher potencies when compared with other groups. The potency of indole alkaloids and diketopiperazines was most probably due to halogen-based functional groups and sulfide groups, respectively. 相似文献
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不同油菜品种种子带菌检测 总被引：2，自引：2，他引：0
以油菜主产区的10个主栽品种的种子为材料,将吸水纸检测法与分子指纹分析相结合,对种子携带的真菌进行分离和鉴定。结果表明,供试油菜种子携带有7属9种真菌,其优势菌群为镰刀菌属（Fusarium sp.）、链格孢属 （Alternaria sp.）以及青霉属（Penicillium sp.）,且不同油菜品种之间种子所携带的真菌种类有较大差异。 相似文献
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散囊菌是茯砖茶发酵中的益菌。18份茯砖茶样的分离鉴定结果表明,散囊菌的最高含量达1700000 CFU/g,平均含量是24000 CFU/g;并分离到7种散囊菌,它们是冠突散囊菌(Euro-tium cristatum)、匍匐散囊菌(Eurotium repens)、间型散囊茵(Eurotium intermedius)、谢瓦散囊菌(Eurotium chevalieri)、阿姆斯特丹散囊菌(Eurotium amstelodami)、赤散囊菌(Euro-tium rubrum)和一种未定名的散囊菌(Eurotium sp.),其中前5个菌是优势种类。文中还对它们的分类及产毒性问题作了讨论。 相似文献