@article {13074,
	title = {Temperature-Dependent Development and Emergence Pattern of Hypothenemus hampei (Coleoptera: Curculionidae: Scolytinae) From Coffee Berries},
	journal = {Journal of Economic Entomology},
	volume = {103},
	number = {4},
	year = {2010},
	month = {Aug},
	pages = {1159-1165},
	abstract = {The coffee berry borer, Hypothenemus hampei (Ferrari) (Coleoptera: Curculionidae: Scolytinae), is the most important constrain for coffee production throughout the world. Knowledge on the emergence pattern of H. hampei females to infest new berries is crucial to effectively plan control measures. In this laboratory study, we assessed the development of immature stages and the emergence pattern of H. hampei females from the berries by exposing them to temperatures that are typical for high-altitude plantations (>=1,700 m above sea level (mas))) or when coffee is grown under shade trees (20-22[degree]C), and optimum altitude plantations (1,200-1,600 masl) or nonshaded coffee (25-30[degree]C). Fecundity and emergence pattern of H. hampei females from coffee berries varied with temperature. Temperature played a crucial role determining the rate of H. hampei development and therefore the emergence of the females to start a new infestation cycle. The emergence and colonization phases of new colonizing females in coffee plantations with mean temperatures of 20, 25, or 30[degree]C would take place at different moments in the development of the coffee berries, and in some cases more than once. The implications of our findings for an improved, site-specific timing of control interventions against H. hampei are discussed.},
	keywords = {Hypothenemus hampei},
	isbn = {0022-0493},
	author = {Jaramillo, Juliana and Chabi-Olaye, Adenirin and Borgemeister, Christian}
}
@article {13075,
	title = {Where to sample? Ecological implications of sampling strata in determining abundance and impact of natural enemies of the coffee berry borer, Hypothenemus hampei},
	journal = {Biological Control},
	volume = {49},
	number = {3},
	year = {2009},
	month = {June},
	pages = {245-253},
	abstract = {Several parasitoids of African origin have been introduced to coffee producing areas of the Americas and Asia as biological control agents of the coffee berry borer (CBB) Hypothenemus hampei (Coleoptera: Curculionidae). These parasitoids have become established in the field but their effect on the CBB has been limited. A two-year field study in Western Kenya has found Prorops nasuta (Hymenoptera: Bethylidae) to be the predominant parasitoid emerging from CBB-infested coffee berries collected on coffee trees or from the ground. P. nasuta comprises more than 75\% of the total natural enemies collected. The density of A nasuta was 90\% higher in the berries collected from the ground than from the trees. Its hyperparasitoid, Aphanogmus sp. (Hymenoptera: Ceraphronidae), also emerged from both type of berries. Across the two seasons, the average A nasuta density per berry was 18-35 times higher than that of Aphanogmus sp. Throughout the two years sampled, significantly higher numbers of P. nasuta and Aphanogmus sp. occurred between February and March, which coincides with the beginning of the rainy season. Higher numbers of live CBB females were recorded in berries collected from the trees. Nevertheless, mortality of adult CBB was considerably higher from January to March and started to decrease from April onwards. The possibly negative effects of cultural control practices in Latin America which include the removal of berries fallen to the ground on biological control of CBB are discussed, and the use of screened collection devices for these berries which would permit the release of parasitoids but prevent escape of the pest is proposed. [copyright] 2008 Elsevier Inc. All rights reserved.},
	keywords = {Hypothenemus hampei},
	isbn = {1049-9644},
	author = {Jaramillo, Juliana and Chabi-Olaye, Adenirin and Borgemeister, Christian and Kamonjo, Charles and Poehling, Hans-Michael and Vega, Fernando E.}
}
@article {13076,
	title = {Development of an improved laboratory production technique for the coffee berry borer Hypothenemus hampei, using fresh coffee berries},
	journal = {Entomologia Experimentalis Et Applicata},
	volume = {130},
	number = {3},
	year = {2009},
	month = {March},
	pages = {275-281},
	abstract = {The suitability of a mixture of plaster of Paris and charcoal as a means to regulate the moisture content of coffee berries and the relative humidity (moisture conditions) of the rearing environment and its impact on rearing the coffee berry borer (CBB), Hypothenemus hampei (Ferrari) (Coleoptera: Curculionidae), was evaluated under laboratory conditions using two types of coffee. Coffee berries were kept individually in vials with a 1-cm layer of the mixture, and the fresh weight of the berries was assessed, as well as the penetration of CBB into the berries, its survival, and its progeny production over a period of 55 days. Significantly higher survival and progeny production was achieved when using the mixture regardless of the coffee type. Compared to the vials without plaster of Paris/charcoal, a six- to sevenfold increase in survivorship of the F1 was recorded when using plaster of Paris/charcoal and in the latter treatment berries harboured on average more than 100 individuals, whereas only 1.7 in the vials without plaster of Paris.},
	keywords = {Hypothenemus hampei},
	isbn = {0013-8703},
	author = {Jaramillo, Juliana and Chabi-Olaye, Adenirin and Poehling, Hans-Michael and Kamonjo, Charles and Borgemeister, Christian}
}
@article {5519,
	title = {Thermal tolerance of the coffee berry borer Hypothenemus hampei: predictions of climate change impact on a tropical insect pest},
	journal = {Plos One},
	volume = {4},
	number = {8},
	year = {2009},
	month = {2009},
	pages = {e6487, 1-11},
	abstract = {Coffee is predicted to be severely affected by climate change. We determined the thermal tolerance of the coffee berry borer, Hypothenemus hampei, the most devastating pest of coffee worldwide, and make inferences on the possible effects of climate change using climatic data from Colombia, Kenya, Tanzania, and Ethiopia. For this, the effect of eight temperature regimes (15, 20, 23, 25, 27, 30, 33 and 35[degree]C) on the bionomics of H. hampei was studied. Successful egg to adult development occurred between 20[long dash]30[degree]C. Using linear regression and a modified Logan model, the lower and upper thresholds for development were estimated at 14.9 and 32[degree]C, respectively. In Kenya and Colombia, the number of pest generations per year was considerably and positively correlated with the warming tolerance. Analysing 32 years of climatic data from Jimma (Ethiopia) revealed that before 1984 it was too cold for H. hampei to complete even one generation per year, but thereafter, because of rising temperatures in the area, 1[long dash]2 generations per year/coffee season could be completed. Calculated data on warming tolerance and thermal safety margins of H. hampei for the three East African locations showed considerably high variability compared to the Colombian site. The model indicates that for every 1uC rise in thermal optimum (Topt.), the maximum intrinsic rate of increase (rmax) will increase by an average of 8.5\%. The effects of climate change on the further range of H. hampei distribution and possible adaption strategies are discussed. Abstracts in Spanish and French are provided as supplementary material Abstract S1 and Abstract S2.},
	keywords = {Hypothenemus hampei},
	isbn = {1932-6203},
	url = {http://ukpmc.ac.uk/tocrender.cgi?iid=71880},
	author = {Jaramillo, Juliana and Chabi-Olaye, Adenirin and Kamonjo, Charles and Jaramillo, Alvaro and Vega, Fernando E. and Poehling, Hans-Michael and Borgemeister, Christian}
}
