360 



Live Stock Import Regulations. [sept., 



the previous season. Such leaves are stunted in growth, and 



covered with a dense white powder, consisting of the summer 



form of fruit of the fungus. 



When the fungus is present in less quantity in the spring, 



the growth of the shoot is not checked, and the scattered 



leaves bear a small amount of mildew only. 



This disease is much more prevalent on old or full-grown 



trees than on nursery stock, and when present on the latter 

 rarely arrests the growth of the branches. 



Preventive Measures. — When the disease is present in its 

 worst form, the only certain method of arresting its progress 

 is to cut off and burn all the infected rosettes of leaves. The 

 cut should be made about 2 in. behind the tuft of leaves. 

 Trees that have been treated in this manner throw out healthy 

 branches and remain free from the disease. When the disease 

 appears in a mild form on the scattered leaves, the tree should 

 be sprayed with a solution of sulphide of potassium (liver of 

 sulphur), i oz. dissolved in two gallons of water. 



Infection of the leaves only takes place when they are quite 

 young, consequently this is the time to look for the mildew, 

 and on the first symptoms of its appearance, commence 

 spraying. If this opportunity is neglected and the mildew 

 be allowed a start, spraying may be considered useless. 



It would under all circumstances be advisable to spray 

 trees where the disease had previously existed, commencing 

 when the leaf -buds are expanding. 



No definite proof is as yet forthcoming as to whether insects 

 assist in distributing the spores of the fungus, or aiding in 

 its attack in any other way. However, it is quite certain that 

 mildew is most abundant on trees that are infested with 

 " woolly scale " and " green fly," consequently these pests 

 should be dealt with. (See Leaflets 34 and 104.) 



New regulations* for the inspection and quarantine of 

 animals imported into the United States were issued on the 



* The previous Regulations (now superseded) are given in the Journal, Vol. X., 

 p. 114, June, 1903. 



Live Stock Import 

 Regulations. — 

 United States. 



4th April, 1907. The following informa- 

 tion indicates the requirements as re- 

 gards animals exported from this 

 country : — 



