The relationship between the feeding selectivity of Drosophila and the fruit maturity and quality of Myrica rubra cv.Wandao
Drosophila is the main pest that harms the fruit of Myrica rubra.In order to clarify the oviposition and feeding selectivity of Drosophila on Wandao fruits with different maturity in the field and their correlation with fruit quality indicators.Two methods were used to count the number of Drosophila on the fruit of 6 maturity levels of Wandao Myrica rubra in the field.The quality indicators of each maturity level fruit were measured,and the correlation analysis between the number of Drosophila and each indicator was conducted.The results showed that under field conditions,Drosophila exhibited selectivity towards Wandao fruits of different maturity levels.They could lay eggs and feed on fruits of different maturity levels,and there were significant differences in the overall distribution of Drosophila numbers(P＜0.001).The green fruits with the lowest maturity levels had the least number of Drosophila,and Drosophila tended to lay eggs and feed on fruits with higher maturity levels.There is a highly significant correlation between the number of Drosophila in soaking fruit and various fruit quality indicators,while the number of Drosophila in bagging fruit is only significantly correlated with the yellow blue value b*.The research results can provide scientific basis for the selection of precise control timing for Drosophila on Myrica rubra cv.Wandao.
万方数据
维普
