In an earlier laboratory study (Burnett, 1958) influences of various types of host distribution on the efficiency of the chalcid parasite Encarsia formosa Gahan were determined. A constant number of parasites searched among five host densities for scales of the greenhouse whitefly, Trialeurodes vaporariorum (Westw.), that were distributed in three patterns over a 25-square-inch surface. In addition to the increased parasitism resuItIng from contagious distributions of the host, it was found that approximately the same percentage of each of the five different host densities within the same distribution was attacked by the parasite.
No takes yet. Share an insight, caveat, or question.
Thomas Burnett (1958) studied this question.
Synapse has enriched 5 related papers. Consider them for comparative context: