Abstract
Flowering weeds can serve as refugia for natural enemies. In coffee plantation, they might has the potential to attract predator and parasitoid of Coffee Berry Borer (CBB), Hypothenemus hampei Ferr. (Coleoptera: Scolytidae). The aim of this research was to elucidate the influence of weeds to the presence of predator dan parasitoid and their impact to the population of CBB. The research was conducted at Ngantang, Malang Regency and in Laboratory of Pest, Faculty of Agriculture, Brawijaya University. Three types of weed used were: Ageratum conyzoides L. (Asteraceae), Synedrela nodiflora(L.) Gaertn. (Asteraceae), and Arachis pintoi Krap. & Greg. (Fabaceae). The research consisted of two experiments (1) coffee plot with single species of weed and (2) coffee plot with two species of weeds. The results of experiment I and II showed that A. conyzoides, S. nodiflora, A. pintoi and its combination in coffee plantation significantly attracted the predator and parasitoid of CBB. The population of CBB was not significantly different between coffee plot with and without weed. The existence of A. conyzoides, S. nodiflora and A. pintoi in coffee plantations could increase the number of predator and parasitoid of CBB around coffee tree. This result showed that the presence of weeds in coffee plantation is an important factor in maintaining the predators and parasitoid of CBB population.
Highlights
Coffee berry borer (CBB), Hypothenemus hampei Ferr. (Coleoptera: Scolytidae) is the main pest of coffee
We studied the population of CBB in coffee plantation related to the existence of predators and parasitoids on weeds
The selected species of weed based on what mostly grew in the coffee plantation in Ngantang i.e. A. conyzoides, S. nodiflora, and flowering plant intentionally planted in several coffee plantation i.e. A. pintoi
Summary
Coffee berry borer (CBB), Hypothenemus hampei Ferr. (Coleoptera: Scolytidae) is the main pest of coffee. (Coleoptera: Scolytidae) is the main pest of coffee. Coffee berry borer (CBB), Hypothenemus hampei Ferr. This pest is difficult to control due to its development occur inside the coffee berries. Controlling CBB with the intensive use of insecticide was reported triggering resistance of the pest (Brun et al, 1989, Brun & Suckling, 1992). As an implementation of Integrated Pest Management (IPM), may help solving the problems. Managing vegetations diversity as well as weeds might support the natural enemies by providing resources of food, alternative prey or hosts, breeding site, and shelter (Landis, et al, 2000; Norris & Kogan, 2005; Karindah et al, 2011a). Despite the term of weed has a negative conotation, several studies showed that weeds can give advantage by attracting beneficial insects and act as a ground cover (Araj & Wratten, 2015)
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