1060 EXPERIMENT STATION RECORD. 



Notes are given on certain insects affecting grasses and cereals. 

 Three species of crane flies {T'lpula oleracea^ T. macnilosa, and Pachy- 

 rJiina maculosa) are mentioned as especially injurious to meadows and 

 pastures. Applications of guano alone, or mixed with salt, kainit. 

 and superphosphate, have been found to assist the infested plants to 

 outgrow the attacks of these insects. Applications to the soil of nitrate 

 of soda and gas lime are also recommended. Salt applied alone failed 

 to lie of service in man}" cases, but as a preventive dressing before 

 plowing was found to be of value. 



Notes are given on the habits and life history of the Hessian fly, 

 together with an account of its destructiveness in various parts of Eng- 

 land. For the purpose of preventing injuries from this insect, the 

 author recommends sowing wheat after danger of infestation from th(^ 

 Hessian fly is past, and the burning of infested chaff and screenings. 



The enemies of the currant received consideration. Phytojptns rihis 

 was carefully studied with reference to determining the means of dis- 

 tribution of this insect, A number of experiments conducted by the 

 author and her correspondents indicate that the soil about the roots of 

 infested plants does not contain the mite. The exact manner in which 

 this mite extends its distribution is not known. The only practicable 

 remedy suggested is the breaking oft' and destruction of infested buds. 

 Cidarla clotata is described and figured, with a brief account of its 

 injurious attacks upon red currants. As remedies against this insect, 

 the author recommends the collection of the web cocoons b}^ hand- 

 picking, and their destruction. 



Notes are given on certain flour and grain beetles, including the fol- 

 lowing species: Trihol/kmiferrugineiiin^ T. cmifusum, and Ten<Arioides 

 mauritanicus. The remedies to be adopted against the first 2 species 

 include careful cleaning of barrels, bins, or wooden depositories in 

 which infested grain has been kept, heating flour to a temperature of 

 120 to 150° F., and fumigation with bisulphid of carbon. TenSr!- 

 oides mauritanicits was introduced into England from Africa, and is 

 known to attack cereals, almonds, nuts, bread, etc. This species was 

 observed to attack Trihollujn ferrugirunLm. When the species attacks 

 grain, it is recommended that the bags be disinfected and that th(> walls 

 receive a thick coating of whitewash. 



The grouse fly {Oriufliomyia (ir!ciil((r!<() is described, and notes are 

 given concerning its appearance on other animals besides the grouse. 

 A brief account is given of some of the anatomical structures of this 

 insect. 



A discussion is given of the following insects injurious to hops: 

 Agriotes obscu7nis^ A. sputator, Athcnis rhombeus, and FsylUodes atten- 

 uata. Notes are presented on the halfits and life history of the 3 

 mentioned species of wireworms, including their occasional carniv- 

 orous habits. It had been suggest(^d that rape cake might pro^•e bene- 



