Hypothenemus hampei (coffee berry borer).

H. hampei, otherwise known as the coffee berry borer, is the most serious pest of coffee in many of the major coffee-producing countries in the world. The scolytid beetle feeds on the cotyledons and has been known to attack 100% of berries in a heavy infestation. Crop losses can be very severe and coffee quality from damaged berries is poor. H. hampei has been transported around the world as a contaminant of coffee seed and very few coffee-producing countries are free from the borer. Its presence in Hawaii was confirmed in 2010 and Papua New Guinea and Nepal remain free of the pest: in Papua New Guinea an incursion prevention programme was mounted in 2007 (ACIAR, 2013) to reduce chances of invasion from Papua Province (Indonesia). There is no simple and cheap method of control of H. hampei.

Beitrag zum eingeschleppten Schwarzen Nutzholzborkenkäfer Xylosandrus germanus. Biologie und Schadenpotential an im Wald gelagertem Rundholz im Vergleich zu Xyloterus lineatus und Hylecoetus dermestoides | The Imported Japanese Scolytid beetle Xylosandrus germanus: Biology and Damage Potential for Stored Round Timber Compared to Xyloterus lineatus and Hylecoetus dermestoides

In 1995, significant damage caused by Xylosandrus germanus (Blandford) was reported on round timber, both with bark and decorticated, of Norway spruce and fir. The insecticides used against Xyloterus lineatus and Hylecoetus dermestoides (L.), showed an insufficient to no effect againstX. germanus. Between 1996 and 1998, the development of the populations were investigated, the effectiveness of insecticides tested and the influence of felling date, decortication and storage site investigated in correlation with the intensity of damage. The decreasing population density, the activity of the insects as well as recommendations for felling and removal of round timber are illustrated and discussed.