02054nas a2200193   4500008004100000020001400041245018400055210006900239260000800308300001200316490000700328520127500335653002401610100002301634700002201657700002301679700002301702856013501725       2010                        eng d  a0028-104200aMolecular diagnosis of a previously unreported predator-prey association in coffee: Karnyothrips flavipes Jones (Thysanoptera: Phlaeothripidae) predation on the coffee berry borer0 aMolecular diagnosis of a previously unreported predatorprey asso  cMar  a291-2980 v973 aThe coffee berry borer, Hypothenemus hampei, is the most important pest of coffee throughout the world, causing losses estimated at US $500 million/year. The thrips Karnyothrips flavipes was observed for the first time feeding on immature stages of H. hampei in April 2008 from samples collected in the Kisii area of Western Kenya. Since the trophic interactions between H. hampei and K. flavipes are carried out entirely within the coffee berry, and because thrips feed by liquid ingestion, we used molecular gut-content analysis to confirm the potential role of K. flavipes as a predator of H. hampei in an organic coffee production system. Species-specific COI primers designed for H. hampei were shown to have a high degree of specificity for H. hampei DNA and did not produce any PCR product from DNA templates of the other insects associated with the coffee agroecosystems. In total, 3,327 K. flavipes emerged from 17,792 H. hampei-infested berries collected from the field between April and September 2008. Throughout the season, 8.3% of K. flavipes tested positive for H. hampei DNA, although at times this figure approached 50%. Prey availability was significantly correlated with prey consumption, thus indicating the potential impact on H. hampei populations.10aHypothenemus hampei1 aJaramillo, Juliana1 aChapman, Eric, G.1 aVega, Fernando, E.1 aHarwood, James, D.  uhttps://weevil.myspecies.info/molecular-diagnosis-previously-unreported-predator-prey-association-coffee-karnyothrips-flavipes-jon02052nas a2200181   4500008004100000020001400041245014300055210006900198260000800267300001400275490000800289520133700297653002401634100002301658700002601681700002801707856013501735       2010                        eng d  a0022-049300aTemperature-Dependent Development and Emergence Pattern of Hypothenemus hampei (Coleoptera: Curculionidae: Scolytinae) From Coffee Berries0 aTemperatureDependent Development and Emergence Pattern of Hypoth  cAug  a1159-11650 v1033 aThe 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.10aHypothenemus hampei1 aJaramillo, Juliana1 aChabi-Olaye, Adenirin1 aBorgemeister, Christian  uhttps://weevil.myspecies.info/temperature-dependent-development-and-emergence-pattern-hypothenemus-hampei-coleoptera-curculionidae02558nas a2200217   4500008004100000020001400041245016600055210006900221260000900290300001200299490000700311520171500318653002402033100002302057700002602080700002802106700002102134700002702155700002302182856013502205       2009                        eng d  a1049-964400aWhere to sample? Ecological implications of sampling strata in determining abundance and impact of natural enemies of the coffee berry borer, Hypothenemus hampei0 aWhere to sample Ecological implications of sampling strata in de  cJune  a245-2530 v493 aSeveral 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.10aHypothenemus hampei1 aJaramillo, Juliana1 aChabi-Olaye, Adenirin1 aBorgemeister, Christian1 aKamonjo, Charles1 aPoehling, Hans-Michael1 aVega, Fernando, E.  uhttps://weevil.myspecies.info/where-sample-ecological-implications-sampling-strata-determining-abundance-and-impact-natural-enemie01841nas a2200205   4500008004100000020001400041245013800055210006900193260001000262300001200272490000800284520105900292653002401351100002301375700002601398700002701424700002101451700002801472856013501500       2009                        eng d  a0013-870300aDevelopment of an improved laboratory production technique for the coffee berry borer Hypothenemus hampei, using fresh coffee berries0 aDevelopment of an improved laboratory production technique for t  cMarch  a275-2810 v1303 aThe 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.10aHypothenemus hampei1 aJaramillo, Juliana1 aChabi-Olaye, Adenirin1 aPoehling, Hans-Michael1 aKamonjo, Charles1 aBorgemeister, Christian  uhttps://weevil.myspecies.info/development-improved-laboratory-production-technique-coffee-berry-borer-hypothenemus-hampei-using-fr02436nas a2200229   4500008004100000020001400041245013200055210006900187260000900256300001600265490000600281520167800287653002401965100002301989700002602012700002102038700002202059700002302081700002702104700002802131856004702159       2009                        eng d  a1932-620300aThermal tolerance of the coffee berry borer Hypothenemus hampei: predictions of climate change impact on a tropical insect pest0 aThermal tolerance of the coffee berry borer Hypothenemus hampei   c2009  ae6487, 1-110 v43 aCoffee 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 S2.10aHypothenemus hampei1 aJaramillo, Juliana1 aChabi-Olaye, Adenirin1 aKamonjo, Charles1 aJaramillo, Alvaro1 aVega, Fernando, E.1 aPoehling, Hans-Michael1 aBorgemeister, Christian  uhttp://ukpmc.ac.uk/tocrender.cgi?iid=71880