摘要
为掌握枣园桃小食心虫的发生规律及种群数量动态,以确定防治最佳时期。采用性诱剂诱测法研究发生期温、湿度与枣园桃小食心虫种群数量的关系。结果表明,桃小食心虫在晋中地区枣园一年发生2代,且越冬代羽化不整齐。将桃小食心虫种群数量分别与温度和湿度进行最优曲线回归模型拟合发现,其种群数量与温度呈等比级数和指数相关,达显著水平,模型分别为Y=e(-0.341+0.229×t)和Y=0.711×e0.229×t;与湿度的最优曲线拟合为S形曲线(Y=e(7.942-112.547/t))和对数曲线(Y=-1.806+545.101×lnt),达极显著水平。夜间温、湿度越高,成虫的发生量越大,诱捕效率越高。
To investigate the occurrence and the population dynamics of Carposina sasakii Matsmura and determine the best control period, the relationship between temperature, humidity and the population number of Carposina sasakii was studied using sex pheromone. The results showed that Carposina sasakii occurred two generations in jujube orchards in Jinzhong city, and overwinter generation emergence period ranged from the middle ten days of May to the last ten days of June. Using the number of Carposina sasakii to curve optimal fitting regression models with temperature and humidity, it was observed that the quantity and temperature were related with the population of Carposina sasakii in geometrically and index-related and the relationship was significant. The models were Y=e（-0.341＋0.229×t）and Y=0.711×e0.229×tas respected. The optimal curve with humidity was estimated at s-shaped curve Y=e（7.942-112.547/t）, and logarithmic curve Y=-1.806＋545.101×lnt, reached a significant level. The higher of night temperature and humidity, the greater the amount of the adult occurs, and the higher trapping efficiency.
出处
《山西农业科学》
2014年第9期994-998,共5页
Journal of Shanxi Agricultural Sciences
基金
国家公益性行业(农业)科研专项(201103024)
山西省高等学校大学生创新创业训练项目(2013087)
山西农业大学第十一批大学生科技创新项目(11-017)
山西农业大学引进人才科研启动项目(XB2009007)
山西农业大学科技创新基金项目(2010001)
关键词
桃小食心虫
温度
湿度
种群数量
Carposina sasakii Matsmura
temperature
humidity
population size
