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Combining pheromone‐baited and food‐baited traps for insect pest control: Effects of additional control by parasitoids
Author(s) -
Barclay Hugh J.
Publication year - 1991
Publication title -
population ecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.819
H-Index - 59
eISSN - 1438-390X
pISSN - 1438-3896
DOI - 10.1007/bf02513555
Subject(s) - kairomone , biology , pheromone , pest analysis , parasitoid , host (biology) , biological pest control , population , pest control , attraction , ecology , integrated pest management , predation , trap (plumbing) , pheromone trap , competition (biology) , botany , linguistics , philosophy , demography , environmental engineering , sociology , engineering
Summary Two age‐structured population dynamic models are analyzed in which pheromone‐baited trapping and food‐baited trapping are used simultaneously to eradicate an insect pest. The pest species is assumed to be under partial control by a host‐specific parasitoid species. The two models assume that density‐dependent population regulation is accomplished either by host larval competition or by means of oviposition interference among the parasitoids. The two trap types interact in a positive synergistic manner and this combination appears to be very promising as a useful combination of pest control methods. Several features of the system are examined; the feature which appears to cause the greatest problem is the possibility of the parasitoids being attracted to the pheromone or the food traps. In either case, the degree of attraction does not have to be very great to undermine the control effort. It is seen that food trapping becomes indispensible if host pheromone is used by the parasitoids as a host‐locating kairomone. If odor in the food traps is used by the parasitoids as kairomone, then the situation appears more optimistic, as the reduction in efficiency of the food traps appears much less than with the pheromone traps when pheromone acts as kairomone.