18 MONTANA EXPERIMENT STATION BULLETIN 504 



CLOTHES MOTHS (Family: Tincidac) 



Althougli clothes moths are present throughout the state, they are gen- 

 erally held in check by the efficient insecticides which are available for 

 combatting them. Few inquiries were received since most housewives can 

 get excellent results by using these readily available chemicals. 



DERMESTIDS (Family: Dcrmcstidae) 



The presence of these insects in the state is surprisingly common. In- 

 quiries have been received from practically all the larger towns. Generally, 

 the chlorinated hydrocarbons will control tliese insects very well. However, 

 where severe infestations which are hard to contact are found, cyanide 

 fumigation may be necessary. 



COCKROACHES (Family: Blattidac) 



Cockroaches continue to be present throughout most of the state with 

 the exception of the northeastern comer. 



TERMITES (Order: Isoptcra) 



Infestation in newsprint was reported in Prairie Count\'. An infestation 

 on a ranch was reported in Sweet Grass County, and several houses in 

 Mineral and Chouteau counties were reported to be infested in 1953. In 

 1954 houses in Dawson and Phillips counties were found to be infested. In 

 most of these cases, commercial pest control operators exterminated the 

 termites. 



CEREAL INSECTS (Orders: Colcoptcra and Lcpidoptcra) 



Cereal insects as household pests have not been too prevalent during 

 the biennium. However, occasional cases arise where they do infest cereals 

 stored in cupboards and in panbies. These infestations are readily elim- 

 inated by destroying the infested cereal, cleaning up the storage area, and 

 then spraying with either DDT or chlordane. 



FLIES (Family: Muscidae) 



There is nothing that will help more in a fly elimination program than 

 good sanitation. At the present time, good sanitation in conjunction with 

 the newer bait-t>'pe fly poisons can keep housefly populations below nuisance 

 levels. 



ANTS (Family: Formicidac) 



These insects occur generally in and around households throughout the 

 state. In some cases, breaks in foundation walls have provided ready en- 

 trance for these pests. Chlordane, either dusted or sprayed, in and around 

 the runways of ants, appears to give excellent control. 



