56 EXPERIMENT STATION RECORD. 



Some injurious insects and fungus diseases of the year 1902, W. Locuheao 



{Ontario Aijr. Col. ond K.rpl. luinii 1!/>I. 1UI)..\ pp. l!/-i.'S, ji</.^. iWi.—NoteK are given on 

 the wiwtty (7>f.»r>u».s *ivV//''wo;/»(), wliidi eoninionly lives on species of jointweed, but 

 which was found to be injurious to aj)ples. Brief accounts are also i)resented of the 

 injuries (!aused by woolly aphis, bronze birch borer, leaf spot of sugar beet and horse 

 chestnut, shot-hole disease of ])luni and cherry, apple scab, pear scab, sooty fungus 

 of apple, late blight of potatos, etc. T. D. Jarvis calls attention to the dangers from 

 close proximity of mountain ash, wild plum, and chokecherry to fruit trees. These 

 Avild trees are infested with a number of insect and fungus pests which may readily 

 spread to c-ultiviited trees. 



Entomological notes {Jour. JUL Ayr. [Loiiduii], 9 {I'jOS), No. 4, j}p. i]l!)-525). — 

 Brief accounts of carrion beetles, Ilydnvcia vilcdcea, (Mania mintUi, llcdya ticidlana, 

 Lavcrna aim, and J'lnrdon betuhr. The last-named insect is reported as very injurious 

 to mustard. It is recommended that all nuistard plants be burned in the fall after 

 being allowed to dry out. The destruction of these plants, together with other rul)- 

 l)ish under which the beetles might hibernate, has been found to check the multipli- 

 cation of the insects and to prevent a portion of the spring injuries. 



Indian Museum notes {Indian 3Ius. Xotcs, 5 {190S), No. 3, pp. 61-Jp;, ph. 14). — 

 As with the jirevious nund)ersof this publication, this immber isoccuj)ied with orig- 

 inal conmmnications on injurious insects and with numerous miscellaneous notes on 

 economic entomology. W. H. Ashmead (pp. (H, 62) describes sla new the genus 

 Eurycephalus, which belongs to the family Chalcididfe. E. E. Green (p. 63) 

 describes a new species of scale insect under the name Chiona.tjji.^ decurvaia, which 

 was found attacking rice. E. P. Stebbing (pp. 64-91) presents an account of insect 

 pests of sugar cane in India. A large number of species are described and notes are 

 given on the nature of the injury done by the different species and on means of com- 

 bating them. J. Durrant (p. 92) describes a new genus of Tineid moth under the 

 name Dasyses. E. E. Green (pp. 93-103) describes a number of new species of scale 

 insects throughout India. These species belong to the genera Lecanium, Aspidiotus, 

 Tachardia, Mohophlebus, etc. 



The remainder of this publication is occupied with notes on insect pests from the 

 entomological section of the Indian INIu.seum and includes brief accounts of insect 

 enemies of forest trees, fruit trees, garden vegetables, cereals, corn, indigo, sugar 

 cane, tea, opium, cotton, etc. A " lake fly " nuisance due toa species of Ghironomus 

 was investigated. It was found that this insect could be controlled by cleaning the 

 borders of the lake, removing all weeds, and dredging away weeds and low mud 

 banks which occur above the surface of the lake. The eggs of the fiy are usually laid 

 in such material. 



The chinch bug in Maine, H. W. Britcher {Maine Sta. Bid. 91, pp. 41-52, 

 figs. 2). — Descriptive biological and economic notes are given on this insect. The 

 chinch bug is said to have been observed in Maine for the past 35 years. It is 

 chiefly injurious to grasses and the remedies suggested are burning, spraying with 

 kerosene or kerosene emulsion, and plowing under. A number of experiments 

 were made for the purpose of testing the power of the chinch bug to withstand 

 unusual conditions. As a result of these experiments it was found that the hiber- 

 nation of the chinch bug does not represent a period of continuous torpidity, but a 

 period which may be interrupted at any time during the winter by seasons of warm 

 weather. Complete submersion in water, even for a considerable period, did not 

 always prove fatal. Freezing in water was almost always fatal to chinch bugs, while 

 freezing in a dry or moist atmosphere proved to be a less effective check. 



The root borer of sugar cane, N. B. Watson ( West Indian Bid., 4 {1903), No. 

 1, pp. 37-47, figs. 3). — Notes are given on the habits and life history of Diaprepts 

 abbreiyiatus. The insect is described in its various stages. The unusual mcrease of 

 this species is believed to be due to the destruction of birds and reptiles by the 



