THE Ministry of Agriculture and Fisheries has recently issued five new advisory leaflets dealing with fruit tree diseases. “Leaf Scorch, Glassiness, and Bitter Pit of Apples” (No. 203) gives useful descriptions of these three physiological disorders, outlines the conditions which produce them, and suggests ways in which they may be avoided. Advisory Leaflet No. 205 (“Apple Mildew”) replaces Leaflet No, 204, and emphasises the need for cutting diseased twigs well back, in order to remove all the fungus. “Gooseberry Cluster-Cup Runt”(No. 198; replacing No. 209) describes the secidial stage of the fungus Puccinia Pringsheimiana, which spands its uredo-and teleuto-spore stages on certain sedges. The ascidial stage occurs on the leaves and fruit of gooseberries, causing malformation. Control is obtained by hand-picking diseased fruits, and removing sedges from the locality. The die-back disease of gooseberries is treated in Leaflet No. 204 (formerly No, 234). The fungus Botrytia cinerea kills the outer tissues of the stem, usually just above ground-level, and the whole bush dies. The fungus is usually a saprophyte, and its attacks may be controlled by clearing away decaying material from the neighbourhood, or spraying bushes with 0·4 per cent copper sulphate solution, just before the buds open. “Powdery Mildew of the Vine”(No. 207) is an up-to-date edition of Leaflet No. 133.