›› 2020, Vol. 32 ›› Issue (3): 469-474.DOI: 10.3969/j.issn.1004-1524.2020.03.12

• Plant Protection • Previous Articles     Next Articles

Population dynamics of three kinds of fruit-eating male adult in peach orchard and their correlation with temperature and rainfall

QIU Xiaohong1, ZHENG Lumin1, CHU Shupin2, ZHU Youli3   

  1. 1.College of Agriculture and Horticulture, Jiangsu Vocational College of Agriculture and Forestry, Zhenjiang 212400, China;
    2.Plant Protection and Plant Quarantine Station of Jiangsu Province, Nanjing 210036, China;
    3.Plant Protection and Plant Quarantine Station of Zhenjiang City, Zhenjiang 212400, China
  • Received:2019-08-27 Online:2020-03-25 Published:2020-04-03

Abstract: The sex pheromone inducing methods were used to study the population dynamics on Grapholitha molesta(Busck), Carposina sasakii Matsumura and Conogethes punctiferalis from 2016 to 2018 in Jurong City, Jiangsu Province. The results showed that the number of Grapholitha molesta among species was the largest in 2016. The large generation and the number of peaksin Grapholitha molesta both appeared in 2016 and 2017, however, the overwintering adult was much lower than the generation in 2018. Carposina sasakii occurred rarely after early September of each year. Compared with 2016 and 2017, the population of Dichocrocis punctiferalis was the highest in 2018, which showed occurrence periods lasted until early November. There were no significant linear relationships between annual average monthly quantity of trapped insects and annual average monthly precipitation in the three pests during 2016-2018 (P>0.05). There was significant positive correlation between the annual average monthly quantity of trapped insects and the sum of monthly temperature in Carposina sasakii (P<0.05).

Key words: Grapholitha molesta, Carposina sasakii, Conogethes punctiferalis, population dynamic, sex pheromone inducing methods

CLC Number: