. Agricultural news. Agriculture -- West Indies; Plant diseases -- West Indies. ToL. III. No. THE AGEICULTURAL NEWS. 205. >§^ia5=t3 EEyiGE FATIIOLOGISCHE EX PIIYSIOLO- aiSCUE WAARXEMIXGEN OVER KOFFIE: door Prof. Dr. A. Ziimnermann. Batavia : G. Kolff Ji; Co., JIOO4. This book gives a very complete account of the •of coffee, ui)on tlie author's observations while in .Java. The most important insect pest described is Peutatoma pUhejit, a sucking insect that attacks leaf and stem. Full accounts are given of the disease phenomena, of the entomological study of the insect and o
. Agricultural news. Agriculture -- West Indies; Plant diseases -- West Indies. ToL. III. No. THE AGEICULTURAL NEWS. 205. >§^ia5=t3 EEyiGE FATIIOLOGISCHE EX PIIYSIOLO- aiSCUE WAARXEMIXGEN OVER KOFFIE: door Prof. Dr. A. Ziimnermann. Batavia : G. Kolff Ji; Co., JIOO4. This book gives a very complete account of the •of coffee, ui)on tlie author's observations while in .Java. The most important insect pest described is Peutatoma pUhejit, a sucking insect that attacks leaf and stem. Full accounts are given of the disease phenomena, of the entomological study of the insect and of the anatomical investigation of the injuries caused by its attack. The other insect pests described are a few bugs, all \vith the .same habit of feeding as Pmtatoma phheja and all caasing similar injury. A full account is given of the fungoid disease caused by Ilemileia vastatn'r, which has done so much damage in cofl'ee plantations in Ceylon and elsewhere. The disease attacks the leaves principally. Other leaf diseases described include those caused by Gloeaq-iorium Coffeamiin, Coniothi/rium Coffeae, Collttotfi- iihuiii incaiiiiitum, Cercospom Coffticola, etc. In each case a full account is given of the fungus and of the disease phenomena. A number of stem diseases are also described and figured. Among these is the disease caused by a Basidiomy- cete, Corticium Javaniaim, one caused by JVecatiir decreius, first noticed by Kidley in the >Straits Settlements, and a disease known as the 'scheurziekte' (splitting disease) which produces cracks in the stem. A brown root disease apparently caused by a hitherto undescribed fungus, Sporotrichuia radicicoliim, is des- cribed, as also two other root diseases, the ' spleetziekte' of Cqfea Ulierica and a white root disease of the same varietj'. Quite a number of fungi are described as attacking coffee berries, among them being Ilemileia vastatrix, mention- ed above, Pestalozzia Coffeae, Corticium javanicum, etc. The book concludes
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