Sampling methods for Dacus spp.
The estimation of numbers of Dacus cucurbitae and D. dorsalis caught in traps was analyzed by three sampling methods. A weight method, basing on the dry weight of flies, proved to be faster and more precise than a volume and a grid method.
Sources
Stark, J.D.; Vargas, R.I. (1990) Comparison of sampling methods to estimate the number of Oriental Fruit Fly and Melon Fly (Diptera: Tephritidae) captured in traps.
Journal of Economic Entomology 83, 2274-2278.