48 



sulphur. This wash, which is known as the A.P.S. wash, 

 should be used with a 0*5 per cent, soft soap ( = 5 Ib. of soft 

 soap to 100 gallons of wash). 



2. Tipping. ' Tipping" consists in the cutting away in 

 autumn of all shoots which show signs of the presence of 

 mildew. The operation should be carried out as soon as 

 possible after the wood is ripened, since, as explained already, 

 many perithecia fall off the shoots during late autumn andl 

 winter. On the other hand, it should not be commenced 

 before active growth ceases, as otherwise the bushes will 

 produce fresh shoots, the soft tips of which are particularly 

 liable to mildew. Late August or early September is usually 

 the most suitable time, but the exact date varies with the 

 season, the age of the bush and the locality. On no account 

 should the tippings be allowed to fall to the ground; as the 

 work proceeds they should be carefully collected and burned. 

 If tipping is thoroughly carried out, the outbreak in spring 

 is very greatly reduced. It need hardly be added that there is 

 no need to tip parts of bushes that are not diseased or to tip 

 healthy bushes. 



3. Preventive Measures. Gooseberry bushes should not 

 be purchased unless a guarantee is given that they are free 

 from American Gooseberry Mildew. 



If the disease is known to be present in the neighbourhood, 

 special precautions should be taken to prevent its spread. 

 Baskets, packing-cases, or empties likely to be contaminated 

 with spores should not be allowed on the premises, unless 

 they have been disinfected by washing in a solution of copper 

 sulphate (1 Ib. copper sulphate to 20 gallons of water). The 

 clothes of workers and pickers are also liable to be con- 

 taminated with spores; if pickers, therefore, have worked ii 

 gardens where the mildew exists in its summer stage, at least 

 a week should elapse before they are permitted to pick in clean 

 plantations. Periodical inspections of the bushes should be 

 made once a month from May to September. 



NOTE. Under the American Gooseberry Mildew Order of 

 1919, notification of the disease is required only from persons 

 who grow gooseberry or currant bushes for sale, but the 

 Ministry retains power under the Order to deal with fruit 

 growers and private owners who fail to take proper steps to 

 check the disease. Such notification must be made to the 

 Ministry of Agriculture and Fisheries, or to an Inspector of 

 the Ministry. It is illegal to sell gooseberry or currant bushes 

 affected with the disease, but the bushes may be sold after 

 notification if all the diseased shoots are cut away. 



There are no other restrictions on the movements of goose- 

 berry and currant bushes. 



