445 



importance in control. A poison-bait composed of white bread-crumbs, 

 16 lb., Paris green, 1 lb., and sufficient water to moisten, spread 

 broadcast over lawns and gardens just before dark, gives good results. 

 This should be repeated at intervals of three or four nights from 

 15th May to 15th June. Plants that show earwig injury should be 

 sprayed with a solution of 6 lb. arsenate of lead in 50 U.S. gals, water, 

 the young leaves being covered with the spray. If the earwig attacks 

 persist during the summer, a contact spray of nicotine, soft soap and 

 water should be used over the plants every three nights after 1st July 

 until the pest is controlled. Traps formed of inverted flower-pots 

 placed every 10 or 12 ft. along borders or near vines catch a number 

 of individuals which can be shaken out over a pail of kerosene and 

 water. 



Hearst (W. H.). Report of the Minister of Agriculture, Province of 

 Ontario, for the Year ending 31st October 1916, Toronto, 1917, 

 84 pp., with photographs. [Received 27th July 1917.] 



In the fruit branch, nurseries and orchards have been systematically 

 inspected, and fumigation of all nursery stock from scale-infested 

 districts was carried out. In every case where San Jose scale 

 [Aspidiotus perniciosus] was reported from a fresh district the provincial 

 inspector was sent to the locality to advise and demonstrate methods 

 of control. Apiary inspection has resulted in better conditions of 

 bee-keeping. Orchard experiments with dust instead of liquid sprays 

 are considered to have given very favourable results, in many cases 

 showing equal effectiveness and a saving of time. Further experiments 

 are, however, necessary before definite conclusions are reached. For 

 San Jose scale and oyster-shell scale [Lepidosaphes ulmi], a liquid 

 is still found to be necessary for the dormant spray. The extension 

 of these experiments to vegetable growing indicates that much work 

 in this respect can be advantageously carried on in the coming year. 



Metcalf (Z. p.). The Southern Corn Bill-Bug. — North Carolina Agric. 

 Exten. Service, Raleigh, N.C. Circ. no. 19, August 1916, 21 pp., 

 13 figs. [Received 30th July 1917.] 



This is a popular bulletin containing an account of the life-history 

 and destructiveness of the corn bill-bug [Sphenophorus callosus]. 

 [See this Review, Ser. A, i, p. 262.] Direct methods of control are 

 difficult, owing to the hardiness of the insect and to its habit of living 

 either in the maize-stalks or in the ground. The following factors in 

 control are discussed, no one of them in itself being efficient, but when 

 taken together checking the damage to a considerable extent : proper 

 drainage and fertilisation of the ground, planting before the middle 

 of April, ridging, thorough cultivation, autumn and winter ploughing, 

 destruction of native food-plants, and rotation of crops. 



Gillette (C. P.) & List (G. M.). Insects and Insecticides. — Colorado 

 Agric. Expt. Sta.,Fort Collins, Bull. no. 210, October 1915, 55 pp., 

 35 figs. [Received 11th August 1917.] 



This bulletin gives a short account of the insects commonly found 

 in Colorado injuring fruit, orchard and shade trees, and shrubs, with 



