T3 



C. On bogs with winter flowage only : — 



1 . Hold the luhiter flowage until after the middle of May every third 

 or fourth year. This is also recommended for the fruit worm. 



2. On other years., treat as for dry bogs. 



D. On dry bogs : — 



1. If the young 7vorms are found to be /latching plentifully^ spray at 

 once {early in May) with arsenate of lead used at the rate of seven 



pounds to fifty gallons of 7vater. 



2. These caterpillars show a strong tendency to work at night 

 and hide under the vines or anything else that they can find during 

 the day. On this account., in case the caterpillars have become so far 

 developed that it is not practicable to spray, lay down boards for them 

 to hide under and destroy those that collect there. 



THE YELLOWHEAD CRANBERRY WORM. 



Acleris miiiuta (Robinson). 



This insect, so closely resembling the fire-worm in its manner of 

 work, may be distinguished from that species, in its caterpillar state, 

 by means of its yellow head. The two species are often confused 

 by the ordinary grower, but their life histories are different in many 

 respects. The yellowhead passes the winter in the moth stage 

 and not in the egg, as does the fire worm. It is two brooded in 

 Massachusetts, like the fire worm, and seems to infest dry bogs for 

 the most part, probably seldom troubling long those with abundant 

 water supply. It is important, in treating for this insect, to know 

 when the eggs begin to hatch. These eggs resemble those of the 

 fire worm so closely that they cannot be distinguished from them 

 even with a microscope, and the same general indications of hatching 

 may be looked for in both species. 



The results of spraying experiments, tried on the second brood, 

 show that arsenate of lead spray, properly applied, is very effective 

 against this insect, not only preventing injury to the leaves and fruit, 

 but also, in the case of this brood, saving from destruction the buds 

 formed at the tips of the uprights for the following season's growth. 

 It has also been demonstrated that in a wet season it will be ad- 



