i 



454 EXPERIMENT STATION RECORD. [Vol.43 



As a control measure the author recommends the use of arsenate of lead 

 paste 11 lbs., atomic sulphur 24 lbs., ground glue 1 lb., blackleaf 40 1.5 pints, 

 and water 200 gal. The application of this spray results in first and second 

 instar larvfe being killed by contact without further injury, while the older 

 larvJB are destroyed by the arsenical. The combination of arsenate of lead, 

 atomic sulphur, and glue produces a good adhesive coating which provokes a 

 longer contact of the blackleaf 40 with the worm and causes death, when other 

 wise the nicotin, volatilizing more rapidly, would not do so. 



The glasshouse tomato moth and its control, L. Loyd {Fruit, Flower, and 

 Veg. Trades' Jour. [London], 36 (1919), No. 26, pp. 717, 718; 37 {1920), Nos. 1, 

 p. 9; 2, p. 87). — This is a summary of information on Hadena oleracea, which 

 is a source of loss in greenhouses in the I.ea Valley amounting to £5 to £10 

 or more per acre where special remedial measures have not been adopted. The 

 use of arsenate of lead paste at the rate of 6 lbs. to 100 gal. water, to which 

 2 oz. saponin has been added, is recommended. It is essential that the spray 

 be applied just after transplanting and repeating about four weeks before the f 

 first fruit is picked. Caterpillars tlmt appear when the plants can not be 

 sprayed should be trapped, directions for which are given. The moths should 

 be trapped throughout the season. 



Control of the grape-berry moth in northern Ohio, H. G. Ingerson and 

 G. A. Runner {U. S. Dept. Agr. Bui. S37 {1920), pp. 26, pis. 4, fig. i).— This is 

 a report on extensive experiments in cooperation with the Ohio Experiment 

 Station conducted in northern Ohio during the seasons of 191G, 1917, and 1918. 

 This moth has been a more general pest in northern Ohio than in other com- 

 mercial grape sections because of the following conditions: (1) Production 

 of the late maturing Catawba variety, (2) cultural methods favorable to suctjj 

 cessful wintering of the insect, (3) harvesting methods which leave the insect! 

 in the vineyards, and (4) a grape training system which prevents spray ma- 

 terials from reaching the clusters when applied with set nozzles. 



The work has shown that a combination of first and second spray applica- 

 tions is adequate for control on the principal varieties of grapes grown in 

 northern Ohio, and when carefully applied leaves the fruit suitable for the 

 basket market. "A combination of arsenate of lead powder 1.5 lbs. to 50 gal, 

 and resin fish oil soap 1 lb. to 50 gal., in Bordeaux mixture or with ston« 

 lime 2 lbs. to 50 gal., may be used for spraying Concords and Catawbas. Cop- 

 per sulphate should^ not be used in the above mixture for Ives variety. Ar- 

 senate of calcium, commercial powder, proved almost as eflBcient as arsenate of 

 lead for grape-berry moth control. Dust mixtures do not adhere to the 

 grape berries as well as liquid sprays, but may be used on small home grape 

 arbors if applied frequently. The grapes will be practically free from spray 

 residue if the schedule recommended is used according to directions. The 

 trailer method only was used, and a trailer provided with a short rod and 

 two angle nozzles proved most satisfactory in most vineyards." 



The fight against the. pink bolhvorm in the United States, W. D. Hunter 

 {U. S. Dept. Agr. Yearbook 1919, pp. 355-368, figs. 5).— This is a brief popular 

 summary of the work carried on again.st the pink bollworm in this country, 

 a more extended account of which by the author has been previously noted 

 (E. S. R., 39, p. 764). 



Antagonism of cattle and man in the blood nutrition of Anopheles 

 maculipennis. — The antimalarial role of domestic cattle, E. Roubaud 

 {Compt. Rend. Acad. Sci. [Paris], 169 {1919), No. 10, pp. .^83-^86).— The author 

 reports observations on the food habits of A. maculipennis, the principal trans- 

 mitter of malaria in Europe. Comparative observations made in the Vendeen 

 fens, the' Loire-Inferieure, and the vicinity of Paris indicate that the problem 



