Survey of Thrips Population in Different Regions and Different Fruit and Vegetable Growth Stages in Fujian Province
In order to further clarify the dominant populations of thrips on different host crops in different regions of Fujian Province,and to grasp the distribution of thrips at different host growth stages in different regions,in this study,the species survey of thrips in 60 counties and districts of 9 cities in Fujian Province was carried out.At the same time,three fixed fruit and vegetable monitoring bases were selected to carry out a two-year(2017-2018)survey of thrips populations on different hosts and at different growth stages.The results showed that there were mainly 5 kinds of thrips(Frankliniella intonsa,Thrips palmi,Thrips hawaiiensis,Megalurothrips usitatus,phlaeothripidae)on the common vegetables in Fujian Province.Among them,F.intonsa,T.palmi and M.usitatus were the dominant populations,which were distributed in 9 cities of Fujian Province,followed by phlaeothripidae(only not found in Xiamen City in the survey).T.hawaiiensis was only distributed in the individual cities in Fujian Province.Okra and eggplant had the most species of thrips,with 5 species,followed by luffa,red pepper and cowpea,while the above 5 thrips were not found on gourd,pumpkin,asparagus,water spinach and perilla.The six host plants,including strawberry,cucumber,tomato,eggplant,cantaloupe and pepper,were investigated at the three fixed monitoring sites.And the dominant species of thrips were Thrips palmi,Thrips hawaiiensis and Frankliniella intonsa.The population of thrips on strawberry in greenhouse was significantly higher than that planted in the open field.The population of thrips on cucumber,tomato and eggplant in greenhouse decreased successively,while the population of thrips on Hami melon was significantly higher than that on pepper.In general,the population number of thrips at different host growth stages was as follows:flowering stage>fruit bearing stage>mature stage>seedling stage.The survey results could provide scientific basis for the precise prevention and control of thrips pests.
万方数据
维普
