76 



Farmers' Eeview, Aug. 24, 1882, v. 9, p. 113. 



Notice of experiments by Prof. S. A. Forbes with an insecticide 

 mixture for the chinch bug; Viz., an emulsion of water, kerosene, 

 and milk, costing half a cent a gallon, and applied with a sim- 

 ple machine. 



Farmers' Review, Aug. 31, 1382. Warsaw Horticultural Society. 

 Chinch bugs quite numerous in some corn fields, 



Forbes, S. A.— Bacterium a Parasite of the Chinch Bug. (Amer- 

 ican Naturalist, Oct., 1882, v. 16, p. 224. Abstract of article, 

 with extracts, in Prairie Farmer for , 1882.) 



Chinch bugs under observation died rapidly and unaccountably. 

 Microscopical examination of the fluids from the crushed bodies 

 of both living and dead bugs showed them to be swarming with a 

 species of bacterium, having its principal, perhaps exclusive, seat 

 in the alimentary canal. Bugs in the field diminished rapidly, the 

 mortality being, however, chiefly among the older insects. 



PoPENOE, E. A. — The Chinch Bug and the Season. (Prairie 

 Farmer, Nov. 25, 1882.) 



Chinch bug everywhere abundant in Kansas in early spring 

 months, some badly infested fields being turned under by the 

 plow, and young corn near wheat or meadow-lands being destroyed 

 by invading chinch bugs. Abundance of rain^ following, season 

 proved on the whole unusually free from damage. Possible that 

 simple excess of moisture drowns young bugs on the ground, but 

 doubts if others are so affected. Gives illustrations of tenacity of 

 life in chinch bugs. Recalls Dr. Shimer's theory of epidemic 

 disease, cites Thomas's opinions in support of it, and quotes ex- 

 periments made by Forbes in which chinch bugs were artificially 

 drenched for many successive days without effect. Also refers to 

 Forbes's observations on bacterial parasite of chinch bug. Reports 

 recently finding in Southeastern Kansas situations where chinch bugs 

 died in great numbers in corn fields, "each dead bug being covered 

 with a strong growth of white mold." Connects this occurrence 

 with Shimer's and Forbes's statements. Cites Forbes's experiments 

 with kerosene emulsion for chinch bug. 



J[ohnson], B. F. — Notes from Champaign, 111. (Prairie Farmer, 

 Dec. 9, 1882.) 



By destroying volunteer wheat great uuml)ers of the Hessian fly 

 and chinch Img would be destroyed. 



Forbes, S. A. — Another Cliinch-Bug Parasite. (Prairie Farmer. 

 Dec. 9, 1882.) 



Referring to Poi)eno(rs article of Nov. 25, surmises that white' 

 mold mentioned is identical with a fungus found destroying chinch 

 bug in corn fields near Jacksonville in Se])tember. This fungus, 

 idi'ntificd by Pn)f. Burrill as an Entomophthora, imbedded the 

 chincli bugs and fastened them to leaves and stalks of corn. Re- 



