1899] 



ENTOMOLOGICAL SOCIETY. 



67 



tions of a mixture of Paris Green and Bordeaux before the blossoms open are of great 

 service not only in preventing the entrance of fungi, but also in killing young canker- 

 worms and young bud-worms. The bud-worms, when they emerge from their silken 

 cases in the spring, have shining black heads and the first segment behind the head also 

 black. 



Both species of Tent Caterpillars (Clisiocampa Americana (Fig. 15) and 0. disstria 

 (Fig. 14) were exceedingly numerous during 

 the early spring, and did much harm in many 

 sections. The farmers of the Province require 

 to be aroused in this matter ; they appear to 

 make no effort to kill them during the most 

 assailable period, viz., during the winter when 

 the egg.masses (Fig. 15c) can be readily seen 

 and destroyed, and during early spring when 

 the caterpillars are small. Applications of 

 Paris Green are very effective 

 on the young caterpillar, but 

 ineffective on the full-grown. 



Many persons are under 

 the impression that some plague 

 comes over the full grown cat- 

 erpillars when they suddenly 

 disappear. It is true the cat- 

 erpillars no longer exist as 

 such, but it ought to bs borne 

 in mind that they have simply 

 changed into pupae within 

 white cocoons (Fig. 15d), from 

 which the moths will emerge 

 about July to lay the bracelet 

 of eggs on the twigs and 

 branches. FlG- 14 FlG> 15 . 



Bonuses might be given to the children for all egg-masses destroyed, or all nests 

 burned. 



The Scale Insects have perhaps become the most serious pests in many districts. 

 The San Jose Scale, which has become quite abundant in two or three localities, as well 

 as remedies for its suppression, will be found fully treated in another part of 

 this Report. 



In some localities, chiefly in the San Jose infected areas, is found a scale 

 Aspidiotus ostrece-formis, which is very like the San Jose Scale, but apparently not 

 nearly ao destructive. Occasionally trees have been found which were quite 

 badly infested, in which cases much harm was being done. Applications of 

 whale-oil soap (2 lbs. to 1 gallon of water) during the winter will prevent the 

 spread of this scale. 



The Oyster-Shell Bark Louse (Mytilaspis pomorum) is doing much harm 

 in many orchards which have been neglected (Fig. 16). Frequently speci- 

 mens of branches were received, which were literally covered with this 

 scale, yet the owners had overlooked its presence, and not until several trees 

 had been killed was expert opinion invited. Applications of whale oil soap 

 (2 lbs. to 1 gallon of water) during the winter, and dilute kerosene emulsion, 

 about the end of May when the young lice are moving, will rid the trees of 

 these pests, and in most cases give a new lease of life to the previously 

 Fig. 18. neglected trees. 



