THE MORTALITY OF ARTIFICIALLY INFESTED THIRD INSTAR LARVAE OF ANASTREPHA LUDENS AND A. OBLIQUA IN MANGO FRUIT WITH INSECTICIDAL CONTROLLED ATMOSPHERES AT HIGH TEMPERATURES

Elhadi M. Yahia, D. Ortega, A. Martinez, P. Moreno
Mango fruit in Mexico can be infested with several insects including various species of fruit flies. Hot water (46.1°C for 65–90 minutes, depending on fruit weight) is the only authorized quarantine treatment in the country. Some mango cultivars are tolerant to insecticidal atmospheres and to heat. Previous work in our laboratory and also reported in this meeting indicated that insecticidal controlled atmospheres (0–0.5 kPa O2 + 50 kPa CO2) at high temperatures (44–55°C) are very effective in causing in vitro mortality of eggs and third instar larvae of Anastrepha ludens and A. obliqua. Therefore in this work mango fruits were artificially infested with the third instar larvae of both species and larval mortality was determined after the fruits were exposed to the same atmosphere at 35–49°C and 50% RH for 160 min. Temperatures at 35–40°C caused 100% mortality of larvae of A. obliqua, but not of A. ludens. Temperatures at 42 to 49°C caused 100% mortality of the third instar larvae of both species.
Yahia, Elhadi M., Ortega, D., Martinez, A. and Moreno, P. (2000). THE MORTALITY OF ARTIFICIALLY INFESTED THIRD INSTAR LARVAE OF ANASTREPHA LUDENS AND A. OBLIQUA IN MANGO FRUIT WITH INSECTICIDAL CONTROLLED ATMOSPHERES AT HIGH TEMPERATURES. Acta Hortic. 509, 833-840
DOI: 10.17660/ActaHortic.2000.509.99
https://doi.org/10.17660/ActaHortic.2000.509.99
Mangifera indica, controlled atmosphere, disinfestation, fruit fly, hot air, insects, quarantine, postharvest

Acta Horticulturae