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MONTANA EXPERIMENT STATION 



jl^eneral character of the diseases and their methods of working. 

 Such investigation involves making prolonged observations, often ex- 

 tending over several years, and requires close application and the 

 use of expensive books and equipment. We believe it is the special 

 province of the State Entomologist to make such investigations of 

 pests and diseases occurring in the State, and that the practical work 

 of controlling them should be left to other organizations, so far as 

 such are appointed by the State for the purpose. 



The following divisions include the more important noxious 

 insects which occur or may occur in Montana: 



1. Insects affecting growing cereals. 



2. Insects affecting legumes and grasses. 



3. Insects affecting pasture and range grasses- 



4. Insects affecting field root crops. 



5. Insects affecting vegetable and garden crops. 



6. Insects affecting greenhouse plants. 



7. Insects affecting tree fruits. 



8. Insects affecting small fruits. 



9. Insects affecting stored food supplies- 



10. Insects affecting ornamental trees. 



11. Insects affecting forest trees. 



12. Insects affecting shade trees. 



13. Insects of the household. 



14. Insects as spreaders of human and animal diseases. 



Examples of pests in all of these fourteen classes occur in Mon- 

 tana, and we have repeatedly been called upon to furnish information 

 in regard to each group. Because of the prevalence and importance 

 of insects and diseases affecting fruits, the practical work of con- 

 trolling these has been turned over by the State to the Board of Hor- 

 ticulture, and we understand that it is the purpose of the State that 

 this board shall have jurisdiction in matters of enforcing the law 

 regarding the importation of nursery stock and fruits, and the in- 

 spection of orchards for the presence of diseases which may be 

 eradicated or controlled. No special provision has been made for the 

 msects in the other groups and so the State Entomologist has consid- 

 ered it his duty to gather and distribute the needed information. 

 There will always remain much work for both the State Entomolo- 

 gist and the Board of Horticulture, and it is very desirable that these 



