17 research outputs found
Experience with Behavior-Modifying Chemicals for Insect Control
Insect behavior-modifying chemicals are being used in pest management programs in two basic ways. Indirect control of pests involves the use of baited traps for detection and monitoring of populations. Pests are controlled directly through mating disruption and by drawing adults to attractive sites where they are removed from the population, either with traps or insecticides. Recent advances in combinations of behavior-modifying chemical technology and insecticides have resulted in improved pest control. Examples of techniques for employing pheromone systems and experience with various pests are discussed
Neurological influences on pheromone release and calling behaviour in the gypsy moth, Lymantria dispar
Mortality of the tobacco caterpillar,Spodoptera litura (F.), when treated withBacillus Thuringiensis combinations with boric acid and insecticides
Comparison of methods for deploying female gypsy moths to evaluate mating disruption treatments
Sex pheromone and visual trap interactions in mate location strategies and aggregation by host-alternating aphids in the field
Field observations were made on the responses of males and gynoparae of three host-alternating aphid species, the blackberry-cereal aphid, Sitobion fragariae (Walker), the bird cherry-oat aphid, Rhopalosiphum padi (L.) and the damson-hop aphid, Phouodon humuli (Schrank) to species-specific sex pheromones released from transparent and coloured water traps. Pheromone traps caught significantly more males than did control traps without pheromone, whereas transparent, light green, yellow and orange traps caught most insects. Measurements of the distance over which sex pheromones function indicated that male P. humuli detect the pheromone 2-6 m from the source and can fly upwind to a source in wind speeds of less than or equal to 0.7 m s(-1). In all three species significantly more gynoparae were caught in pheromone traps than in control traps, suggesting that pheromone released by adult sexual females may assist late-flying gynoparae to locate a suitable host plant on which to deposit their progeny. The response is relatively stronger for males than gynoparae, but the pheromones appear to act as both sex and aggregation pheromones