CRANBERRY INSECT PROBLEMS AND SUGGES- 

 TIONS FOR SOLVING THEM/ 



Page. 



Foliage-al tackini; ijihecls 4 



Blackhead flreworm 1 



Yellowhead fireworm 9 



lled-striped fire*vorm 12 



Cranberry tipworm 1-t 



i^panwornis 17 



Army worm and fall army worm 18 



Cranberry fleabeetle. 19 



Fruit-attacking Insects 20 



Cranberry f riiitworra 20 



Cranberry blossom worm 23 



Page. 



Fruit-attacking insects— Continued. 



Cranberry katydid 25 



Grassl^oppers and crickets 26 



Vine-attacking insects 29 



Cranberry girdler 29 



' Cranberry toadbug 33 



Other cranberry stem feeders 35 



Root-attacking insects 37 



Cranberry rootworm 37 



White grubs 42 



COMMERCIAL CRANBERRY CULTURE is an intensely 

 specialized industry, limited to a few sections of this country, 

 notably areas in Massachusetts, New Jersey, Wisconsin, Long Island, 

 and a district along the coast near the mouth of the Columbia River 

 in the Pacific Northwest. Troublesome insects occur in all these 

 regions, most of which are also of economic importance on other plants. 



Cranberry bogs usualh^ are flooded in the Avintertime, from De- 

 cember or January until April or May, and reflowed one or more 

 times in the spring to eradicate insects. Occasionally a bog is flooded 

 in the fall, immediately after picking, for a period of one or two 

 weeks, a practice which aids materially in controlling the pests. 



Insect problems may be disposed of with little difficulty where 

 the bogs are constructed properly and ample provision is made for 

 flooding and reflooding. Many bogs, however, have been laid out with- 

 out supplying adequate flooding facilities, and hence the control of 

 insects has become a Aery serious problem for some growers. New 

 insecticides are coming to the front, and these may be of value in 

 helping to control cranberry insects, but too much stress can not be 

 laicl upon careful provision for a Avater supply Avhen plans are being 

 made for the deA-elopment of cranberry land. 



'his bulletin .supersedes 



rnioi-s' Uullotin 1' 



mlierry Culture. 

 3 



