Biological Aspects of Scheloribates Jaevigatus (Acari: Oribatida) when Fed on Mixture of the Free-Living Nematod, Eudiplogaster phlagemcaudatus and Potato in the Laboratory

Document Type : Original research articles

Authors

1 Agric. Z0ology and Nematology Dept., Fac. of Agric., Al-Azhar Univ., Cairo, Egypt

2 Plant Protection Research Institute, Agriculture Research Center, Dokki, Giza, Egypt.

Abstract

Scheloribates Jaevigatus (Koch) was able to  develop and reproduce when fed  on mixture of free-living nematod, Eudiplogaster phlagellicaudatus (Andrassy) and potato. Temperature had a significant effect on duration of the life cycle and all life span of this species. As temperature changed between 25 and 30°C, the incubation period decreased. Both male and female immature stages decreased when temperature increased between 25 and 30°C. Life cycle of male reached adulthood in a shorter period than that of female. This period decreased from 24.67 ± 0.26 to 21.25 ± 0.53 days for male and from 28.01 ± 0.66 to 23.16 ± 0.98 days for female at 25 and 30°C, respectively. Temperature also negatively affected the adult female longevity and fecundity. It was found that the greatest average number of eggs deposited by female was 36.88 ± 2.13 at 25°C; this decreased to 29.63 ± 2.55 at 30°C.

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