Abstract
Histological studies reveal that the ovarian tissues in both larval and protonymphal stages of the two-spotted spider mite, Tetranychus urticae Koch, are inactive, but this region in the deutonymphal stage shows germ-cell division. The newly emerged female adult has a well developed germarium with a few oocytes, but old adults have many oocytes and these are in the process of maturation. Females of T. urticae when exposed to a residual 2.0% treatment of apholate and 5-fluorouracil show several changes; these include a progressive degeneration of ovarian tissues and the formation of few oocytes with increasing age. Apparently apholate and 5-fluorouracil do not cause gross morphological effects on the testes of the male.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
