Temporal trend in damage to different fruit crops caused by Bactrocera dorsalis (Hendel) adults in plum producing areas
Author of the article:LI Yuan YI Xiao-Long HUANG Ai-Ling HUANG Hui-Xin WANG Xiao-Yun ZHENG Xia-Lin LU Wen
Author's Workplace:Guangxi Key Laboratory of Agric-Environment and Agric-Products Safety, College of Agriculture, Guangxi University, Nanning 530004, China
Key Words:Prunus salicina; Bactrocera dorsalis; pattern of transferring damage; population dynamic; meteorological factor
Abstract:
[Objectives] To clarify the temporal trend in damage to
different fruit crops caused by Bactrocera dorsalis (Hendel) in a plum, Prunus
salicina Lindl., growing area, and thereby facilitate the development of
new strategies and technology to control this pest. [Methods] Potential host species, fruiting periods,
the amount of damage to each fruit crop and the pattern of spread of B. dorsalis were investigated. The
relationship between the population dynamics of this pest and meteorological
factors in plum producing area of Guangxi were also analyzed using Pearson
correlation and principal component analysis. [Results] A total of 11 fruit producing species mature
in different months in the plum producing area. Among the fruit producing
species investigated (Eriobotrya japonica, Prunus mume, Clausena lansium, Citrus reticulate, C. reticulate, C. maxima, P. salicina and Diospyros kaki), the highest (22%) percentage of damaged fruit was
recorded in P. salicina. The temporal
trend of damage to different fruit crops was: Eriobotrya japonica (April) →P. salicina cv. ‘Sanyue’ and ‘Sanhua’, Prunus
mume, and Clausena lansium (May
to August) →Citrus reticulate cv. ‘Shatangju’ and ‘Huangdi’, C.
maxima, and Diospyros kaki (September
to October) →D. kaki (November). Male B. dorsalis should be trapped using sex
pheromone lures between 26 April and 12 December. Two occurrence peaks of B. dorsalis adults were observed in the
first half of July and the latter half of September, and occurrence was significantly correlated with air
temperature. [Conclusion] There
is a clear temporal trend in the damage caused by B. dorsalis to different
fruit crops and the occurrence of this pest was correlated with
meteorological factors. Controlling B.
dorsalis on E. japonica in April
could reduce subsequent damage to P.
salicina crops.