244 Insect Pests. 



with one part of finely ground quicklime and two parts of sulphur. 

 This requires to be done three times, in spring and early summer, at 

 intervals of a fortnight. 



It is important that the plants be moist, if not so they must be 

 sprayed with plain water first. 



Considerable damage is often done by this treatment, owing to 

 the scorching of the leaves and shanking off of the fruit. 



Nothing further need be said on this subject ; all other methods, 

 such as fumigation, spraying and greasing the bushes (a thoroughly 

 unpractical method), are of little or no value. 



The grower must rely on hand-picking, the growing of strong 

 varieties, grubbing and replanting with clean stock when the 

 plantation is so badly infested that it becomes unproductive. 



Eefeeencbs. 



(1) Netostead, B. Eeoent Investigations on the Currant Bud Mite. British 



Naturalist, June, 1894. 



(2) Lewis, E. J. Journal S. E. Agri. College, No. 11, pp. 55-80 (1902). 



(3) Warburton, 0. ' Orchard and Bush Fruit Pests and how to Combat 



Them,' p. 17 (1902), and Linnean Society's Journal (Zool.), XXVIII., 

 pp. 366-378. 



(4) Westwood, J. 0. Gardeners' Chronicle (1869). 



(5) Picltering, Spencer V. Second Eeport of the Wobm-n Experimental Fruit 



Farm (1900). 



(6) Lewis, E. J. Journal S. E. Agri. Coll., No. 7, August (1898). 



(7) Theobald, F. V. Eeport on Economic Zoology for the year ending 



April 1st, 1907, p. 53 (1907). 



(8) Theobald, F. V. Idem, p. 54 (1907). 



(9) Ormerod, E. A. Eeport of Observations on Injurious Insects (1893). 



(10) Theobald, F. V. General Notes on Thripidse. Journal S. E. Agri. Coll , 



IX., April, 1900. 



(11) Warburton, Cecil. ' Orchard and Bush Fruit Pests and how to Combat 



Them,' p. 17 (1902). 



(12) Carpenter, O. H. Injurious Insects and Other Animals observed in 



Ireland during the year 1906. Ec. Proo. Eoyal Dublin Soc. Vol. I., 

 pt. 2, p. 441, August (1907). 



(13) Collinge, W. Eeport on the Injurious Insects and Other Animals observed 



in the Midland Counties during 1904, p. 6 (1905). 



(14) Pickering, Spencer and Theobald, F. V. 'Fruit Trees and Their Enemies, 



with a Spraying Calendar,' p. 81 (1908). 



