98 



is so injured that it may fall down. There is practically nothing that 

 can be done for This pest after it appears, and it is only left to ward 

 against its reappearance the next season. 



Injury was observed in a cornfield at Taylors Island from the stalk 



a P ' niiela. This insect does its damage in a somewhat 



similar manner to that done byDiatra s ■ r Tis, except that after 



boring into the stem it tunnels its way upward, eating out the center 



of the plants. 



Injury by the twelve-spotted diabrotiea (Diabrotica 12-punctata) to 

 young corn on the college farm was observed about the middle of 

 May. but it did not later become serious. 



The asparagus beetle [Crioceris asparagi) was a conspicuously 

 injurious species the present year, and it is needless to say that an 

 entirely satisfactory treatment for the pest has not yet been found. 



The strawberry root-lonse {Aph sj > appears now to be gener- 

 ally distributed over the State, more so than in recent years, doing in 

 some ea>es considerable damage. Likewise with this pest we are 

 confronted with the fact that there is no satisfactory treatment, except 

 rotation of crops and perhaps the burning over of the patches in early 

 spring. It is the opinion of the writer, from observations up to this 

 time, that in some localities in our State the aphides pass the winter 

 on the roots of the plants, as I have found plants infested with the 

 louse as late as December 1:2. 



The melon aphis [A hk - was conspicuous by its absence 



the past season, as in other years it has been a source of much appre- 

 hension on the part of the melon growers. From two or three com- 

 plaints sent in the past season, one of the growers stated afterwards 

 that he controlled the pest effectively by fumigating with carbon 

 bisulphid. 



Many complaints of the oyster-shell bark-louse (ICyfilaspis (Lepi- 

 losaplies 2 an< * Tne scurvy bark-louse (Chionaspis 



s were received during the year, and the latter is observed 

 in nearly every orchard that is inspected. 



The cigarette beetle [Lasiod - - | has given us a great 



deal of trouble in Maryland. It is the « >pinion of the writer that there 

 are very few tobacco warehouses and factories which are free from 

 the pest. Also, that it is increasing under cover — that is to say, few 

 owners of tobacco-leaf warehouses have detected its presence in their 

 stock, ddie majority of them keep <:»n hand a large quantity of tobacco 

 boxed up in eases, and seldom examine their tobacco to detect the 

 insect. The loss occasioned by this insect does, however, not fall on 

 the tobacco-leaf merchant, but on the manufacturer who takes it into 

 his factory and attempts to work it. AVhen this insect is once estab- 

 lished in a tobacco factory it is very difficult to entirely eradicate it. 

 The writer knows of on^ instance where the owner has expended 



