Use of gibberellic acid to reduce citrus fruit susceptibility to fruit flies.
P.D. Greany, R.E. McDonald, W.J. Schroeder, P.E. Shaw, M. Aluja, and A. Malavasi
ACS symposium series- National Meetings of the American Chemical Society., 1994. Bioregulators for Crop - ACS symposium series. Proc. of the 205th National Meetings of the American Chemical Society., 1994. p. 39-48
1994
บทคัดย่อ
Citrus fruit are resistant to attack by tephritid fruit flies prior to the occurrence of peel senescence. We have shown that grapefruit and oranges sprayed with ca 10 ppm gibberellic acid (GA) and a suitable surfactant are significantly less susceptible than untreated fruit to attack by Caribbean, Mexican, and Mediterranean fruit flies. The treatment does not inhibit internal ripening of the fruit. In addition to remaining fruit fly resistant, GA-treated fruit also are less prone to late season abscission, exhibit desirable cosmetic peel properties for at least 3 months longer than untreated fruit, and are often less susceptible than untreated fruit to postharvest decay problems. GA use on citrus already is approved by the U.S. Environmental Protection Agency. This approach should provide a biorational addition to existing fruit fly control strategies.