252 EXPERIMENT STATION RECORD. 



attack, etc., in the case of Ammophila plcUpennis are here described. During 

 the wet season by far the most destructive enemy of the army worm is said 

 to be a species of Empusa, probably E. virescens, one of the parasitic fungi. 

 A Micrococcus which is easily cultivated on nutrient gelatin also appeared to 

 destroy the worms during spells of excessively hot weather. 



The treatment found most effective is destruction of the breeding places. 

 After they begin to march, plowing trenches about infested land causes them to 

 accumulate in these and permits their destruction with coal oil and fire. 



Soil sterilizing; Bordeaux mixture and poisons for tobacco seed beds, 

 W. T. HoRNE (Estac. Cent. Agron. Cuha Circ. 30, English Ed., pp. 11). — Damp- 

 ing off, due to a Rhizoctonia, is said to be a well-known disease of tobacco in 

 Cuba. The principal insects which injure the tobacco seed beds are cutworms 

 (Feltia annexa aiad other species), climbing cutworms (Prodenia sp.), the leaf 

 folder (Micromima olivia), and the flea beetle (Epitrix parvula). 



Hot water is considered the most practical means for sterilizing tobacco seed 

 beds so far tried in Cuba. Bordeaux mixture, when properly prepared and ap- 

 plied in time, has thus far proved an effective remedy for the damping off 

 of these beds. It is also a valuable repellant for insects attacking the beds, 

 and if used with poisoned baits will probably be effective. The baits are the 

 most valuable means of protecting the beds from insect injuries and should be 

 used whether insects are seen or not. Where these remedies are not effective 

 a spray of arsenate of lead is recommended. 



Sixth, annual report of the chief inspector of nurseries and orchards, 

 W. E. Evans, Jr. {Ann. Rpt. Ohio Bd. Agr., 62 (1907), pp. .58.0-67)) -—This is a 

 report of the inspection work for the year 1907. 



The damage done by the oyster-shell scale is said to have been very marked, 

 especially in the lake region on poplars, maples, etc. On account of the injury 

 by this pest the city of Cleveland has prnhibiited the setting of Carolina pop- 

 lars within the city bounds. Ravages of the white-marked tussock moth 

 were seen all over the State, and the apple datana was a troublesome pest to 

 nurserymen. 



[Report of the] department of entomology, K. P. T.wlok (Missouri Fruit 

 Bta. Rpt. 1907-8, pp. 10-15, pis. 3). — A large part of the insect work has been 

 directed against the San Jose scale. In a single township as a result of spray- 

 ing demonstrations by the station and the influence of a few progressive or- 

 chardists, 20.000 fruit trees and shrubs were sprayed by orchardists for the San 

 Jose scale in the fall of 1907 and spring of 1908 with excellent results, where 

 previously practically nothing h;id been done to check the spreading of the 

 scale. 



Experiments were conducted against the codling moth and curculio infesting 

 the apple in perfecting a scheme of spraying which would effectually hold both 

 under control. Studies of the life history and habits have also been made of a 

 large number of the principal insect enemies of the orchard. 



Report of the past year's work of the State board of entomology, E. L. 

 WoRSHAM (Ga. Bd. Ent. Bui. 27, pp. 70-80). — The author briefly reports on the 

 work of the year. This includes the inspection work, investigations on the San 

 Jose scale and red-headed fungus (see below), and experiments with soluble 

 oils (E. S. R.. 21, p. 60). Brief ijotes on experiments with plum curculio are 

 also reported, from which it is concluded that arsenical poisons have a decided 

 tendency to reduce infestation from curculio. 



Effect of spraying with lime-sulphur wash. Red-headed fungus as para- 

 sitic on San Jose scale, A. C. Lewis (Ga. Bd. Ent. Bui. 27, pp. 81-86). — Bi'ief 

 notes are given on the effect of spraying with lime-sulphur wash. 



