233 



fresh additions are constantly being introduced. A short account is 

 given of each scale, many of them being illustrated, and special 

 chapters are devoted to the natural enemies of the Coccids of Malta 

 and to various treatments against the scales, including fumigation 

 and spraying. 



Insects affecting the Strawberry. — Canada Dept. Agric. Div. Hortic, 

 Offawa, On'., Bull. 92, 10th February 1919, pp. 31-35. [Received 

 6th April 1920.] 



Insect pests that do serious damage to strawberries in Canada 

 almost every year include white grubs {Lachnos'erna spp.), which 

 readily attack strawberries when grass land is ploughed up and they 

 are deprived of their usual food. Land intended for strawberry 

 culture should be previously planted with such a crop as lucerne, 

 clover or buckwheat, that will not attract the grubs. The practice 

 of taking only one crop of fruit from a plantation and then ploughing 

 it up is recommended. AniJionomtis signatus, Say (strawberry weevil) 

 is frequently injurious [R.A.E., A. iv, 189; v, 461], especially to 

 early varieties ; those varieties with imperfect or pistillate flowers are 

 practically immune. Clean conditions and dusting every bud with 

 one part lead arsenate to five parts finely ground sulphur, when the 

 weevils begin to feed, and again seven days later, are considered 

 the best remedies for this pest. 



Oliorrhynchus ovalus, L. (strawberry root-weevil) is the most 

 important pest of strawberries in British Columbia [R.A.E., A, v, 

 469, 579J. Koot- infesting insects are always difficult to control, and 

 in the present case any insecticide that is strong enough to destroy 

 the w^eevil larvae in the soil will cause some mjury to the plant. 

 The remedy, therefore, lies almost entirely in cultural practices, 

 which include rotation of crops, the growing of strawberries on the 

 one-vear or two-year cropping plan, autumn ploughing and keeping 

 the ground free from weeds in order to starve the young larvae, and 

 the use of domestic birds for clearing up the soil. When the growing 

 of strawberries on a commercial scale is contemplated, these measures, 

 should be adopted before the necessity arises, and fruit trees should 

 be eliminated from land used for strawberry culture. 



The caterpillars of a small moth, probably Aris'.otelia sp., are 

 rather frequently found in the crowns of the plants. Ancylis comp- 

 iana, Froei. (strawberry leaf-roller) occasionally does important 

 damage [R.A.E., A, v., 446]. A spray of 2 lb. dry lead arsenate to 

 40 gals. Bordeaux mixture before the leaves become folded should 

 be effective, and in cases of serious infestation the foliage should be 

 burned, or raked off and burned immediately after the crop is 

 harvested. Cutworms are often troublesome to young strawberry 

 plants. The usual poison-bran mixtures are advocated. 



Work connected with Insect and Fungus Pests and their Control.^ 



Ttept. Agric. Dep*. S^. Lucia, 1918-1919; Ba.bcidos, 1920, pp. 7-8. 



The mole-cricket, Scapteriscus vicinus (didaclylus), is commonly 

 found throughout St. Lucia, causing a good deal of damage in vegetable 

 gardens and in grass lawns. It is chiefl}^ active in the wet season, and 



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