SODIUM TETRABORATE INDUCED OVARIAN CHANGES IN ANASTREPHA SUSPENSA LOEW

YANG, L. K.

Abstract


Four-hr-old Anastrepha suspensa Loew males and females were fed 0%, 0.02%, 0.05%, 0.1%, 0.2%, and 0.5% sodium tetraborate for 24 hr to determine the effect on ovarian development. In separate experiments, 1-, 3- and 5-day-old males and females were fed 0.5% sodium tetraborate. Female A. suspensa controls and treatments were dissected on day 7 after emergence from pupae. Ovaries were fixed, dehydrated, and infiltrated prior to coating and sectioning. Scanning electron microscopy and light microscopy studies revealed that 0, 0.02, 0.05, 0.1 and 0.2% sodium tetraborate in food did not inhibit ovarian development of A. suspensa. Food fortified with 0.5% sodium tetraborate inhibited ovarian development and reduced yolk accumulation in oocytes of all treated flies regardless of fly age.

Keywords


anastrepha suspensa; ovarian development; morphology; borax; eradication

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Proc. Fla. State Hort. Soc.     ISSN 0886-7283