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31 results for “Hypothenemus hampei”
FIGURES 8–10. 8 & 9 in Recent occurrence of Aphanogmus dictynna (Waterston) (Hymenoptera: Ceraphronidae) in Kenya — an important hyperparasitoid of the coffee berry borer Hypothenemus hampei (Ferrari) (Coleoptera: Curculionidae)
FIGURES 8–10. 8 & 9. Males, heads in frontal view; 10. Male, fore wing venation. (at same scale of magnification).
FIGURE 1–3 in Recent occurrence of Aphanogmus dictynna (Waterston) (Hymenoptera: Ceraphronidae) in Kenya — an important hyperparasitoid of the coffee berry borer Hypothenemus hampei (Ferrari) (Coleoptera: Curculionidae)
FIGURE 1–3. Female, lateral habitus; 2. Female, head in frontal view; 3. Antennae: A. Female; B. Male.
Coffee Berry Borer (Hypothenemus hampei Ferrari) trap catch and associated weather variables on Hawaii Island
<p>We sampled flying female CBB adults bi-weekly over a three-year period using red funnel traps baited with an alcohol lure at 14 commercial coffee farms on Hawaii Island to characterize seasonal phenology and the relationship between flight activity and five weather variables. We captured almost 5 million scolytid beetles during the sampling period, with 81-93% of the trap catch comprised of CBB. Of the captured non-target beetles, the majority were tropical nut borer, black twig borer and a species of <i>Cryphalus</i>. Two major flight events were consistent across all three years: an initial emergence from January-April that coincided with early fruit development and a second flight during the harvest season from September-December. A generalized additive mixed model (GAMM) revealed that mean daily air temperature had a highly significant positive correlation with CBB flight; most flight events occurred between 20-26 °C. Mean daily solar radiation also had a significant positive relationship with flight. Flight was positively correlated with maximum daily relative humidity at values below ~94%, and cumulative rainfall up to 100 mm; flight was also positively correlated with maximum daily wind speeds up to ~2.5 m/s, after which activity declined.</p>
Data from: Coffee berry borer (Hypothenemus hampei) (Coleoptera: Curculionidae) development across an elevational gradient on Hawai'i Island: applying laboratory degree-day predictions to natural field populations
Coffee berry borer (CBB, Hypothenemus hampei) (Coleoptera: Curculionidae: Scolytinae) is the most destructive pest of coffee worldwide. Information on CBB development times can be used to predict the initiation of new infestation cycles early in the coffee-growing season and thus inform the timing of insecticide applications. While laboratory estimates of CBB development under constant conditions exist, they have not been applied under the heterogeneous environmental conditions that characterize many coffee-growing regions. We measured CBB development times and abundance in commercial coffee farms across an elevational gradient on Hawai'i Island and applied thermal accumulation models from previous laboratory studies to test their fit to field data. Artificial lures were used to infest coffee berries at five farms ranging in elevation from 279-792 m, and weather variables were monitored at macro (farm-level) and micro (branch-level) scales. CBB development was followed in the field from the time of initial berry infestation by the founding female through the development of F1 mature adults. Mean development time from egg to adult across all sites was 38.5 ± 3.46 days, while the mean time required for the completion of a full life cycle (from time of infestation to presence of mature F1 females) was 50.9 ± 3.35 days. Development time increased with increasing elevation and decreasing temperature. Using macro-scale temperature data and two different estimates for the lower temperature threshold (14.9°C and 13.9°C), we estimated a mean requirement of 332 ± 14 degree-days and 386 ± 16 degree-days, respectively, from the time of berry infestation to the initiation of a new reproductive cycle in mature coffee berries. Similar estimates were obtained using micro-scale temperature data, indicating that macro-scale temperature monitoring is sufficient for life-cycle prediction. We also present a model relating elevation to number of CBB generations per month. Our findings suggest that CBB development times from laboratory studies are generally applicable to field conditions on Hawai'i Island and can be used as a decision support tool to improve IPM strategies for this worldwide pest of coffee.
Fig. 1 in First Record of the Coffee Berry Borer, Hypothenemus hampei (Ferrari) (Coleoptera: Curculionidae: Scolytinae) on Hainan Island, China
Fig. 1. Coffee berry borer, Hypothenemus hampei, infesting coffee on Hainan Island, China. A) Female, B) Male, C) Infestation on fresh coffee berry, D) Infestation on old and dry coffee berry, E) Beetle gallery in the coffee bean, F) Gallery and adult. Scale in A–B: 1 mm.
Data from: Coffee berry borer (Hypothenemus hampei) (Coleoptera: Curculionidae) development across an elevational gradient on Hawai'i Island: applying laboratory degree-day predictions to natural field populations
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Coffee Berry Borer (Hypothenemus hampei Ferrari) trap catch and associated weather variables on Hawaii Island
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Data from: Post-harvest population reservoirs of Coffee Berry Borer, Hypothenemus hampei (Coleoptera: Curculionidae) on Hawai‘i Island
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Figure 4 in First Record of the Coffee Berry Borer, Hypothenemus hampei (Ferrari, 1867), on the Hawaiian Island of Lanai (Coleoptera: Curculionidae: Scolytinae)
Figure 4. View of a section of Kapano Gulch, with feral coffee, Coffea arabica L., visible (center and left), September 2020. Photograph by Kari K. Bogner.
Figura 3 in Manejo de la broca del café, Hypothenemus hampei (Ferrari, 1867) (Coleoptera: Curculionidae: Scolytinae), con atrayentes etanólicos en cultivos de café de Coatepec, Veracruz, México
Figura 3. Número de insectos capturados en el muestreo preliminar. / Number of insects captured in the preliminary sampling.
Figura 2 in Manejo de la broca del café, Hypothenemus hampei (Ferrari, 1867) (Coleoptera: Curculionidae: Scolytinae), con atrayentes etanólicos en cultivos de café de Coatepec, Veracruz, México
Figura 2. CaracterÍsticas para la identificación de H. hampei: a) Cabeza con antenas y ojos. b) Adulto con asperidades en el pronoto y espinas en las tibias anteriores. c) Adulto con estrÍas parte lateral. d) Adulto con las estrÍas eritrales. Escala: 200 µm. / Characteristics for the identification of H. hampei: a) Head with antennae and eyes. b) Adult with asperities in the pronotum and spines in the anterior tibia. c) Adult with lateral part striae. d) Adult with erytral strials. Scale: 200 µm.
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