BIBLIOGRAPHY OF ECONOMIC ENTOMOLOGY. 
85 
715. Forbes, S. A. Plant lice. <Prairie Farmer, 3 May, 1884. 
Answer to correspondent, who sends plant-lice eggs for identification; men¬ 
tions remedies applicable to the situation in which they were found. 
716. Forbes, S. A. [Saw-flies. Dolerus arvensis and D. bicolor. J 
<Western Rural, 17 May, 1884. 
Observation of, and dissections, do not justify charges against Dolerus 
arvensis and D. bicolor as injurious to fruit. , 
717. Forbes, S. A. [The plum curculio and cherries.] <Farmers’ 
Review, 29 May, 1884. 
Reply to an editorial inquiry as to what insect is injuring cherries. 
718. Forbes, S. A. On the life histories and immature stages of three 
Eumolpiui. Corrective notes. <Psyche, May, 1884, v. 4, pp. 
167-168. 
Scelodonta pubescens of a previous paper (No. 712) is S. nebulosus. 
719. Forbes, S. A. Circular [on corn root aphis and Hessian fly]. 
<Illinois Crop Prospects, May, 1884, p. 48. Reprint: 
<Farmers’ Review, 5 June, 1884. See: <Prairie Farmer, 14 
June, 1884. 
A request for information concerning injuries by Aphis maidis on ground not 
in corn the preceding year, and for alcoholic specimens of this aphis 
found on any other plant than corn; examples of Cecidomyia destructor 
solicited as an aid to the more precise determination of its life history; 
and serious underground injuries to corn and sorghum briefly character¬ 
ized, though neither injury is definitely connected with insect attack. 
720. Forbes, S. A. The wheat-straw worm. <Illinois Crop Pros¬ 
pects, 1 June, 1884, p. 14. Reprint: <Farmers’ Review, 10 
July, 1884. 
An illustrated general article on Isosoma tritici, giving extent and character 
of injury, and life history, and proposing remedies. 
721. Forbes, S. A. [Reply to] u Questions about the corn root-worm.” 
<Prairie Farmer, 7 June, 1884. 
To a correspondent who wants to know if salt will kill the “worms” injuring 
his corn—presumably Diabrotica longicornis —Prof. Forbes replies that he 
does not know of its having been tried, and mentions some mineral fertil¬ 
izers as more likely to take effect. Change of crop for a single year said 
to exterminate the insect. 
722. Forbes, S. A. [Investigating grain insects. The Hessian fly.] 
<Prairie Farmer, 7 June, 1884. 
Paragraph from a letter concerning plans inaugurated for completing the 
life history of the Hessian fly in the Wabash Valley. 
723. Forbes, S. A. The insect dispute. <Farmer and Fruit Grower, 
18 June, 1884. 
Editorial caption to a letter of Prof. Forbes, acknowledging receipt of pack¬ 
age of strawberry leaves and crown borers. Leaves said to be badly 
affected with rust. Editor refers to correspondents’ debate as to whether 
the strawberry is suffering from insect or fungus attack. 
724. Forbes, S. A. What ails the larch ? <Prairie Farmer, 11 Octo¬ 
ber, 1884. Reprint: <Trans. Ill. State Hortic. Soc., 1884, n. s., 
v. 18, pp. 420-421. 
Injuries of red spiders [ = Tetranychus telarius). 
