Effects of irradiation on Planococcus minor (Hemiptera: Pseudococcidae).
Irradiation has been recognized and endorsed as a potential phytosanitary measure that could be an alternative to current quarantine treatments. Dosages of 50, 100, 150, 200, and 250 Gy were used to irradiate three different life stages (eggs, immatures, and adults) of Planococcus minor (Maskell) (Hemiptera: Pseudococcidae), focusing on females due to its parthenogenesis ability, with an aim to find the most tolerant stage and the most optimal dose to control P. minor. Cobalt 60 was the source of irradiation used. Irradiation of 150-250 Gy has a significant effect on all life stages of P. minor, decreasing its survival rate, percentage of adult reproduction, oviposition, and fertility rate. The adult was the most tolerant life stage in both mortality and fertility rate. All the different irradiated target life stage groups oviposited eggs, but none of the F2 eggs hatched at the most optimal dosage of 150-250 Gy.
Ravuiwasa
Kaliova Tavou
KT
Department of Entomology, National Chung Hsing University, Taichung, Taiwan.
Lu
Kuang-Hui
KH
Shen
Tse-Chi
TC
Hwang
Shaw-Yhi
SY
D000818:Animals; D004307:Dose-Response Relationship, Radiation; D005260:Female; D005298:Fertility / Q000528:radiation effects; D006430:Hemiptera / Q000254:growth & development / Q000528:radiation effects*; D008297:Male; D010063:Ovum / Q000528:radiation effects; D010312:Parthenogenesis / Q000528:radiation effects; D011839:Radiation, Ionizing; D012098:Reproduction / Q000528:radiation effects; D011198:Solanum tuberosum / Q000469:parasitology