1908.] Insect, Fungus, and other Pests. 



441 



are sometimes attacked. The disease often spreads quickly 

 being favoured by the dispersion of the dropped-out portions of 

 the leaf-bearing conidia. 



The peach trees should be sprayed with an ammoniacal 

 solution of copper carbonate — 1 oz. carbonate of copper and 

 5 oz. carbonate of ammonia in about a quart of hot water, 

 diluted with 16 gallons of water. Spraying should take place 

 the first time just when the leaves are expanding, and thereafter 

 be repeated at intervals. Bordeaux mixture should not be used 

 for peach or almond, as the leaves, and even young shoots, are 

 injured by dilute solutions. 



Diseased Cabbages. — From Haslemere the Board received 

 specimens of cabbage leaves which proved to be covered with 

 discoloured circular patches caused by Sphaerella brassicaecola, 

 Sacc. Diseased leaves should be removed and burned. This is 

 important, as not only will the progress of the disease be checked 

 by so doing, but the soil will not be infected, as it would be if the 

 diseased leaves were allowed to rot on the land. 



Diseased Grapes. — A bunch of grapes from Blairgowrie was 

 affected with Cladosfiorium Roesleri, Catt. All diseased fruit 

 should be collected and burnt, as numerous minute sclerotia 

 are present which will give rise to spores next season. When 

 the vine is resting, all the branches and also the border should 

 be drenched with a solution of 1 lb. of sulphate of iron in 

 3 gallons of water. 



Other specimens. — A number of other specimens comprised 

 whitethorn infested by Podosftora oxycantha, De Bary ; apples 

 from Maidstone, Ross, Westbury (Wilts), Farnborough, Baldock 

 and Garstang affected with Apple Scab (Leaflet No. 131) ; apple 

 leaves from London affected with Apple Tree Mildew (Leaflet 

 No. 204) ; apple specimens from Garstang showing signs of 

 Apple Canker (Leaflet . No. 56) ; and plums from Bewdley 

 attacked by Brown Rot (Leaflet No. 86). The ripe fruit of 

 loganberries from Lewes bore Botrytis cineria, the spores 

 of which alight on sugary exudation from the berries and 

 quickly cover them with a mass of mould. Gooseberries 

 from Bideford, Blandford, Horley, King's Lynn, St. Mary 

 Cray, Etchingham (Sussex), Ipswich, Maidstone, Heathfield, 

 and Horsmonden were affected with European Gooseberry 

 Mildew (see Leaflet No. 52) ; timber from Hemel Hempstead 



