Acarologia (1999) 40, 25-28

E.M. El-Banhawy, B.M. El-Sawaf, H.O. Osman and S.I. Afia (1999)
Effect of type of prey on the life parameters of the soil predacious mite, Gamasiphis tylophagous (Mesostigmata: Ologamasidae), a predator of the citrus parasitic nematode, Tylenchulus semipenetrans (Tylenchida: Tylenchulidae)
Acarologia 40 (1), 25-28
Abstract: Individuals of the predacious mite, Gamasiphis tylophagous El-Borolossy and El-Banhawy, developed faster on the citrus parasitic nematode, Tylenchulus semipenetrans Cobb., than on the acarid mite, Rhizoglyphus robini Claparede. Duration of the adult stage was insignificantly affected by type of prey, although reproduction significantly increased on the nematodes and decreased on the acarid mites. The life table parameters were greatly affected by changing temperature. Below 30°C, individuals developed slower and produced fewer eggs. Other parameters, such as sex ratio, seem not to be affected by temperature.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
general biology - morphology - evolution

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Tylenchulus semipenetrans	Citrus (genus)	Egypt
Gamasiphis tylophagous (predator)	Tylenchulus semipenetrans	Citrus (genus)	Egypt