Attract and Kill
Taking advantage of the adult weevils attraction to the fermenting liquids especially sap from the palm, a poisonous broth was used to bait and kill the weevils the past. This techniques was continuously refined and sugarcane baited traps were successfully used for collection of weevils for a long time.
A decade ago the research on the semiochemicals led to the identification of male aggregation pheromones in the palms. The economically important R. ferrugineus pheromone was discovered and successfully used in Middle East in early nineties. Further refinement of the trapping system has added great value to the existing methods of control. By judicious use of pheromone traps, red palm weevil population can be reduced drastically over a period of time. However, the apprehensions of some farmers that placement of traps in palm gardens may lead to more infestations cannot be dismissed lightly. When traps are placed in a garden they should be properly serviced as per the protocols. Otherwise the entire pest control program becomes counterproductive. So users of control systems should keep in mind the finer points while dealing with pheromone baited traps.