ENTOMOLOGY. 833 



The scale is described iu detail iu the various stages of growth, and 

 the life history given, the information being chiefly compiled.' 



It was found that many deciduous fruit trees were attacked by the 

 scale, though not all to the same extent. Currants, gooseberries, rose- 

 bushes, elms, and English walnuts were also found infested. Apples, 

 pears, plums, and cherries are attacked in preference. Idaho and 

 Louisiana pear trees suffer most, while Keiffer is least likely to be 

 attacked. 



The scale was found parasitized by the hymeuopter Aphelinus fus- 

 cipennis, which attacks about 1 per cent of the scales. In addition, 2 

 species of ladybirds, CMlocorus hivulnerus and Fcntilia onisella, feed 

 uj)ou Aspidiotus. 



It is recommended that every orchard that has been set out within 

 the last 6 years should be thoroughly examined, and if the scales are 

 found they should be brushed off, so far as x)ossible, with a stiff" brush. 

 Following this the trees should be liberally pruned and the cuttings 

 burned. The trees should then be washed or sprayed with whale-oil 

 soapsuds, or with the following potash solution: Crystal potash lye, 1 

 lb.; fish oil, 3 pt.; soft water, 2 gal. To this water should be added to 

 bring the amount up to 15 gal. The application of this insecticide 

 should be made during a mild spell in the winter, and a month later 

 the trees should be sprayed with strong kerosene emulsion. Spray- 

 ing with diluted kerosene emulsion in the spring when the larvae are 

 crawling about is also recommended. The imi^ortance of carefully 

 inspecting all nursery stock is insisted upon. 



Some insects injurious to squash, melon, and cucumber vines, 

 and the asparagus beetle {^^ew York State Sta. Bui. 75, pp. 409-437, 

 figs. 3, pis. 4). — This bulletin contains illustrated descriptive, life his- 

 tory, and remedial notes on the squash bug {Anasa tristis), squash-vine 

 borer {McUitia ceto), boreal ladybird {Epilachne horealis), melon louse 

 {Aphis cucumeris), striped cucumber beetle {Diahrotica vittata), and 

 asparagus beetle {Crioceris asparagi). The investigations were under- 

 taken on Long Island and vicinity, where the insects seemed to be 

 inflicting most damage. 



The squash bug was unusually injurious the past season, and experi- 

 ments were made with carbon bisulphid, pyrethrum powder, and kero- 

 sene emulsion for its destruction. Pyrethrum was found to be of no 

 avail and the other insecticides of but little use. Cleaning the fields 

 of rubbish and plowing in the fall is recommended, and in addition 

 distributing bits of boards, chips, leaves, and the like underneath the 

 vines, where the bugs will gather during the day and may be easily 

 captured and killed. Picking the adult bugs from the vines in the 

 early spring is also advised. 



The squash-vine borer inflicted more damage than any other of the 



' U. S. Dept. Agr., Div. of Ent. Circular 3 (E. S. E., 5, p. 1088). 

 16352— No. 9 6 



