370 



found by the cutworms if covered with bunches of freshly mown grass 

 or weeds, or a tea-spoonful may be put at the base of each garden 

 plant liable to attack. Another good bait is obtained by spraying 

 a patch of clover with Paris green, | lb. to 50 U.S. gals, water, or 

 with lead arsenate, 3 lb. paste or 2 lb. powder to 50 U.S. gals, water. 

 One hour after spraying, the poisoned grass is cut with a scythe and 

 scattered in little heaps over the infested land. In cases where the 

 cutworms become so numerous that they adopt the marching habit, 

 they may be stopped by laying rows of poisoned bait 10 feet apart, 

 with a seed drill, across the line of progress. They may also be stopped 

 by ploughing a furrow in front of them and destroying them with 

 kerosene when they have gathered in it. Paper \^Tappings and tin 

 collars are often used as a protection, and Bordeaux mixture is an 

 excellent repellent, but it is often cheaper and more effective to collect 

 the cutworms by hand and destroy them. 



Goodwin (W. H.). The Plum Curculio. Spraying with Arsenate of 

 Lead proves Best Means of Control. — Mthly. Bull. Ohio Agric. 

 Expt. Sta.., Wooster, ii, no. 4, April 1917, pp. 113-116, 4 figs. 

 [Received 19th June 1917.] 



Cotioirachelus nenuphar (plum curculio) is a pest of plum trees 

 native to North America, where, however, it now attacks apples, 

 cherries, apricots and peaches, and sometimes pears, quinces and 

 crab-apples. It can be effectively controlled by shaking the trees 

 and collecting the weevils on canvas and afterwards destroying them, 

 provided that this is done consistently for 6 or 8 weeks ; this method 

 is, however, so expensive as to be prohibitive. The best results have 

 been obtained by spraying with a mixture of 2 to 3 lb. of lead arsenate 

 paste with 2-3-50 Bordeaux and 2 lb. of soft soap, applied twice, just 

 after the plums and cherries have bloomed, and again two weeks 

 later, Avithout causing any injury to the fruit or foliage. 



GossARD (H. A.). The Striped Cucumber Beetle. Suggested Remedies 

 for Controlling this Pest on Cucurbits. — Mthly. Bull. Ohio Agric. 

 Expt. Sta., Wooster, ii, no. 4, April 1917, pp. 117-120, 1 fig. 

 [Received 19th June 1917.] 



Diabrotica vittata (striped cucumber beetle) hibernates under old 

 cucurbit vines or among grass and weeds, appearing in April and May 

 and attacking the young cucumbers, melons, pumpkins, etc., on their 

 first appearance. Hence it follows that an important control measure 

 is the gathering and burning of all refuse of the plants together with 

 all weeds and rubbish in the autumn. By planting very early varieties, 

 the plants may have passed the danger stage before the beetles appear, 

 and the later varieties should not be started till the beetles have 

 disappeared. The planting of trap- crops of either young cucurbits 

 or beans in alternate rows is a good means of protection. Another 

 method is to dust most of the plants with, tobacco, fine ashes or lime, 

 the imdusted ones, on which the beetles naturally prefer to feed, being 

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

 of water, thus acting as traps. A dusting of lime that has been im- 

 pregnated with the odour of kerosene by mixing 1 pint of kerosene 

 with I peck of hme and then thoroughly stirring this into | a bushel 



