274 JOURNAL OF ECONOMIC ENTOMOLOGY [Vol. 4 



Macroyhonia dalmatica probably attacks the olive through insect 

 punctures. 



The case of the mulberry disease caused by Septoglceum mori may 

 be cited as an example of a plant disease with bad effect upon insects, 

 as the diseased leaves are not used by the silkworms. 



Botryosporiiwi piilchrurn attacks wheat weakened by Tylenchus 

 vastatrix or otherwise. 



Fusarium dianthi, according to Delacroix attacks Dianthus through 

 wounds caused by mites, etc. 



In addition I may mention the introduction of brown rot, black 

 rot and other fungi into apples through codling moth injury; the decay 

 of corn roots following the work of the corn root web worm mentioned 

 by Sanderson; the rots of corn which are thought by Haslam to be the 

 cause of blind staggers in horses and which enter through the injuries 

 of the ear worm in the young ears; the entrance of early blight of 

 potato through the flea beetle perforations. 



In my work in 1896 on corn smut I found in testing different methods 

 of infection, that puncturing of the young tissues after the beginning 

 of ear and tassel formation was the most effective. Hitchcock later 

 noted the increased amount of smut on detasseled corn. I am con- 

 fident that under natural conditions the corn stalk borer will be found 

 one of the chief agencies in corn smut infection. 



The honey dew of plant lice and various scale insects furnish a 

 medium for the growth of black fungi, which, while not parasitic, 

 do damage by excluding light and air when they densely cover the 

 foliage. 



The flower-like fragrance of the spermogonia of rusts is attractive 

 to insects and the spermatia are undoubtedly disseminated by them, 

 but as this type of spore has but rarely been germinated, it is not 

 known whether they may cause infection or not. 



According to B. R. Bones of Racine, Wis., the cabbage rot germs 

 are introduced by insects. 



When the regular program had been disposed of, the following ques- 

 tions were taken up in order and discussed freely by the members: 



QUESTIONS FOR DISCUSSION 



1. The kind and form of information concerning individual nurseries to be fur- 

 nished by an inspector to inspectoi's of other States. 



2. What is the opinion of State inspectors regarding the sale of strawberrj' plants 

 from districts known to be infested with the Strawberry Root Louse? 



3. What is the best way to treat nursery stock infested with the San Jose Scale 

 where such stock is to be planted in infested orchards or sections, the owners of which 

 do not regard San Jose Scale infestation serious, they having adopted adequate 

 spraying methods for its control? 



