Japanese Journal of Applied Entomology and Zoology (2015) 59, 183-189

Nobuo Sawamura, Yutaka Narai, Mayumi Teshiba, Takafumi Tsutsumi, Masatoshi Mochizuki, Satoshi Toda, Toshiro Suzuki, Hideyuki Ichihashi, Jun Tabata and Rikiya Sasaki (2015)
[Forecasting the occurrence of young Japanese mealybug larva Planococcus kraunhiae (Kuwana) (Hemiptera: Pseudococcidae) using sex pheromone traps and total effective temperature for persimmon]
Japanese Journal of Applied Entomology and Zoology 59 (4), 183-189
Abstract: We investigated the possibility of predicting the emergence of first-generation young nymphs of the mealybug Planococcus kraunhiae (Kuwana) by using effective cumulative temperature, with peak sex pheromone trap captures as a base point. Seasonal yearly fluctuations in the number of sex pheromone trap captures in four persimmon fields in Japan (Shimane, Hiroshima, Gifu, and Fukuoka prefectures) indicated that Japanese mealybugs produce three to four generations in a year. The event of the first pheromone trap captures of wild mealybugs in the present study matched with those in our previous rearing experiments in Shimane Prefecture in 2007 and 2008 using male overwintering-generation nymphs raised in a ventilated case with a meteorological gauge (Stevenson screen). The actual timing of the first-generation nymph capture using band traps matched the estimated emergence time of the first-generation nymphs, which was calculated from the cumulative effective temperature starting from the pheromone trap capture time for the over-wintering adult male bugs. Therefore, setting pheromone trap capturing peak as a base point, prediction of occurrence of first-generation mealybug nymphs is considered possible, utilizing the effective cumulative temperature for persimmon.
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(original language: Japanese)
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Database assignments for author(s): Jun Tabata, Masatoshi Mochizuki

Research topic(s) for pests/diseases/weeds:
population dynamics/ epidemiology
pheromones/attractants/traps

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Planococcus kraunhiae	Persimmon (Diospyros)	Japan