The importance of pre spring spray against citrus aphids,
Pulvinaria aurantii Cockerell and Panonychus citri McGregor
that are the most important pest of citrus during spring was tested. In
this research, 150 trees ten years old sweet orange (Thomson navel on
Citrus aurantium (root stocks)) in a citrus orchard approximately
three hectares sampled. The experiment was laid out in a totally randomized
(one-way) design replicated five times. According to the results, the
pre spring spray do not effect on population density of citrus aphids
and P. aurantii during March, April, May and June. However, the
P. citri population decreased. Therefore, it seems the pre spring
spray in citrus orchards is not necessary, but if P. citri is observed,
the pre spring spray should be recommended.
B. Hashemi, M.R. Damavandian, R. Vafaei Shoushtaril and B. Tafaghodynia, 2008. The Effect of Pre Spring Spray to Reduce of Citrus Important Pests. Pakistan Journal of Biological Sciences, 11: 2341-2345.