| 摘要: |
| 为合理保护和利用茶园的自然界天敌，为茶园害虫综合防治提供科学依据，对2015和2016年白毫早茶园天敌与卵形短须螨和双斑长跗萤叶甲空间跟随关系的密切程度进行差异比较研究。运用地学统计学方法求得半变异函数理论模型的变程，用灰色关联度分析法研究2种害虫与9种天敌变程间的灰色关联度，再进行标准化，即该参数除以本类参数的最大值，其商为密切指数。该密切指数值越大，天敌对害虫空间跟随关系越密切，对害虫的捕食寄生率越高，依此评判天敌对2种害虫空间跟随关系的密切程度。结果表明：2015年与卵形短须螨关系密切的前五位天敌依此是粽管巢蛛（1.000 0）、异色瓢虫（0.979 0）、茶色新圆蛛（0.954 9）、鳞纹肖蛸（0.943 9）和八斑球腹蛛（0.934 6）；2016年与卵形短须螨在空间关系跟随关系密切的前五位天敌依次是八斑球腹蛛（1.000 0）、草间小黑蛛（0.977 8）、三突花蟹蛛（0.970 6）、粽管巢蛛（0.958 6）和异色瓢虫（0.897 4）。对2年密切指数之和比较，前五位天敌依次是粽管巢蛛（1.958 6）、八斑球腹蛛（1.934 6）、异色瓢虫（1.876 4）、草间小黑蛛（1.870 2）和三突花蟹蛛（1.793 7）。2015年与双斑长跗萤叶甲空间跟随关系密切的前五位天敌依次是锥腹肖蛸（1.000 0）、粽管巢蛛（0.966 3）、茶色新圆蛛（0.955 1）、草间小黑蛛（0.928 3）和三突花蟹蛛（0.928 8）；2016年依次是三突花蟹蛛（1.000 0）、粽管巢蛛（0.999 1）、草间小黑蛛（0.988 8）、八斑球腹蛛（0.975 2）和锥腹肖蛸（0.950 9）。2年按密切指数之和比较，前五位天敌依次是粽管巢蛛（1.965 4）、锥腹肖蛸（1.950 9）、三突花蟹蛛（1.928 8）、草间小黑蛛（1.917 1）和异色瓢虫（1.841 4）。粽管巢蛛均是对2种害虫空间上跟随关系密切的第一位天敌。2015年4月11日卵形短须螨与空间关系密切的第一位天敌粽管巢蛛个体数的比值为65.25，与第九位天敌茶色新圆蛛的比值为130.50。2016年4月11日双斑长跗萤叶甲与第一位天敌三突花蟹蛛的个体数比值为1.322 0，与第九位天敌个体数的比值为4.105 3。初步分析害虫与天敌数量之比，其比值越小，天敌对目标害虫空间跟随关系越密切，食饵短缺是天敌对害虫空间跟随关系密切的诱因，该法是评判天敌对害虫空间跟随关系较为理想的分析方法。 |
| 关键词: 卵形短须螨 双斑长跗萤叶甲 地学统计学 灰色关联度 空间跟随关系 |
| DOI：10.11841/j.issn.1007-4333.2019.11.10 |
| 分类号: |
| 基金项目:国家自然科学基金项目（30871444）；安徽省自然科学基金项目（11040606M71） |
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| Spatial-following relationships between Brevipalpus obovatus, Monolepta hieroglypica and their natural enemy insects in tea garden |
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SONG Xueyu1, QIAN Guangjing2, ZHANG Shuping2, YU Yan1,2, LI Shang3, BI Shoudong1, ZHOU Xiazhi2, ZOU Yunding2
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1.School of Science, Anhui Agricultural University, Hefei 230036, China;2.College of Forestry and Landscape Architecture, Anhui Agricultural University, Hefei 230036, China;3.College of Forestry and Landscape Architecture, Anhui Agricultural University, Hefei 230036, ChinaSchool of Science, Anhui Agricultural University, Hefei 230036, China
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| Abstract: |
| In order to rationally utilize and protect the natural enemies in tea garden and provide scientific basis for integrated pest control,a comparative study on the close degree of spatial follow-up relationship between Brevipalpus obovatus Donnadieu,Monolepta hieroglyphica mots and natural enemies of "Baihaozao" tea garden in 2015 and 2016 was conducted.Using the geostatistical method to obtain the variances of the semivariogram theoretical model,the gray correlation degree between the nine natural enemies and the two pests was studied by the grey correlation analysis method.And the parameter was then divided by the maximum value of this type of parameter,and its quotient was a close index.The larger the closeness index value was,the closer the spatial follow-up relationship between natural enemies and pests was,and the higher the predatory parasitism rate to pests was.According to the results obtained above,the degree of closeness of natural enemies to the spatial follow-up relationship of the two pests was judged.In 2015,the top five natural enemies closely related to Brevipalpus obovatus were Clubiona japonicola Boes (1.000 0),Leis axyridis Pallas (0.979 0),Neoscona theisi Walckenaer (0.954 9),Tetragnatha squamata Karsch (0.943 9) and Theridion octomaculatum Boes.et Str.(0.934 6).In 2016,the top five natural enemies closely related to Brevipalpus obovatus were Theridion octomaculatum (1.000 0),Erigonidium graminicolum Sundevall (0.977 8),Misumenops tricuspidatus Fabr. (0.970 6),Clubiona japonicola (0.958 6) and Leis axyridis (0.897 4).Compared with the sum of the two years' close index,the top five natural enemies were Clubiona japonicola (1.958 6),Theridion octomaculatum (1.934 6),Leis axyridis Pallas (1.876 4), Erigonidium graminicolum (1.870 2) and Misumenops tricuspidatus (1.793 7) in turn.In 2015,the top five natural enemies closely related to Monolepta hieroglypica were Tetragnatha maxillosa Thoren (1.000 0),Clubiona japonicola (0.966 3),Neoscona theisi (0.955 1),Erigonidium graminicolum (0.928 3) and Misumenops tricuspidatus (0.928 8).In 2016,the top five natural enemies closely related to Monolepta hieroglypica were Misumenops tricuspidatus (1.000 0),Clubiona japonicola (0.999 1),Erigonidium graminicolum (0.988 8),Theridion octomaculatum (0.975 2) and Tetragnatha maxillosa (0.950 9).Compared with the sum of the two years' close index,the top five natural enemies were Clubiona japonicola (1.965 4),Tetragnatha maxillosa (1.950 9),Misumenops tricuspidatus (1.928 8),Erigonidium graminicolum (1.917 1) and Leis axyridis (1.841 4) in turn.The Clubiona japonicola was the first natural enemy closely related to the two pests' space.On April 11,2015,the ratio of the number of individuals of Brevipalpus obovatus to the number of individuals of the first natural enemy Clubiona japonicola closely related to space was 65.25,and the ratio to the number of individuals of the ninth natural enemy Neoscona theisi was 130.50.On April 11 2016,the ratio of the number of individuals of Monolepta hieroglypica to the number of individuals of its first natural enemy Misumenops tricuspidatus was 1.322 0,and the ratio of the number of individuals of its ninth natural enemy was 4.105 3.Preliminary analysis showed that the smaller the ratio of pests to natural enemies was,the closer the spatial follow-up relationship between natural enemies and target pests was.The shortage of bait was the cause of the close spatial follow-up relationship between pests and their natural enemy insects.This method was an ideal analysis method to judge the spatial follow-up relationship between pests and their natural enemy insects. |
| Key words: Brevipalpus obovatus Monolepta hieroglyphica geostatistics grey correlation spatial following relationship |
