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Science 19 October 1979:
Vol. 206. no. 4416, pp. 355 - 357
DOI: 10.1126/science.206.4416.355
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Articles

Juvenile Hormone: Evidence of Its Role in the Reproduction of Ticks

J. MATHEWS POUND 1 and JAMES H. OLIVER JR. 1

1 Department of Biology, Georgia Southern College, Statesboro 30458

Ovarian dlevelopmnent, vitellogenesis, andt etnbrvogenesis in recently matedlce fiemnales of tlhe sofi tick Ornithodoros parkeri Coolev were prevented by topical application of the insect antiallatotropin precocene 2. ThCe blockage was relieved by topical application of jtivenile hormonoe. Cancellation of the anti-juvenile hormnone jJects of precocene 2 and the reestablishment of oogenesis (and oviposition in one specimen) bv a naturally occurring insect juvenile hormone argues strongly for a physiological role of juvenile hormone in acarine reproduction.

Submitted on May 25, 1979

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Science. ISSN 0036-8075 (print), 1095-9203 (online)