2S THE EEPOET OF THE No. 36 



tlie combined action of wind and sun; this has meant greatly increased ovipositing 

 in a restricted area, and as part consequence of such " intensive culture/' 

 Xylotrechus undidatus, first bred in balsam, has then tackled the neighbouring and 

 not very alien trunks of hemlock, much as the apple web-worm advances from 

 orchard to forest trees in search of fodder as soon as its native pastures begin to fail. 



Division Xo. 6, Essex District — J. W. Noble, Department of Agriculture, 



Essex, Ont. 



Attacking Field Crops. 



WiREWOEMS^ "White Grubs, Cutworms. Considerable damage done to the 

 strawberry beds and spring crops by white grubs; the damage from wireworms 

 and cutworms, however, not so great as in an average year. Adults of all species 

 (juite common. 



Attacking Fruit Trees. 



Codling Moth. Very plentiful on apples and pears in uncared-for orchards, 

 ^(■ry little damage where spraying was practised. Considerable second brood. 



Plum Curculio. Considerable damage to plums, to a less extent to apples. 



San Jose Scale. Still quite plentiful in neglected orchards on hawthorns 

 and some other shrubs, completely controlled in cared-for orchards. 



Tent Caterpillars were not common, only a few nests observed during the 

 season. Fall web-worms plentiful, some orchards averaging two webs to a tree. 



Aphids. Quite common but more especially troublesome on small vegetables. 



Peach-Tree Borer. Has ruined a few orchards this year; seems to be 

 plentiful and rather on the increase. 



x^ttacking Small Fruits and Vegetables. 



Melon Aphid and Cucumber, x\piiid. From these insects we suffered a 

 great loss in Essex County this year. Cucumber aphids were responsible for 

 75 acres of cucumbers being plowed up. In fields where spraying with tobacco 

 decoction was commenced in time no harm resulted. Some patches were sprayed 

 as many as five times. Two cases came under my notice where the plants were • 

 dusted Avith tobacco flour, spraying being done by two men, one holding the 

 vine while the other did the spraying and the plants were killed. Bees were 

 restrained from visiting the blossoms and the patch had to be plowed up. Melon 

 aphids also killed a large acreage but were controlled by some of the best growers 

 of large plantations by the use of tobacco water, 1 lb. to one gallon. 



Onion Eoot-Maggot. This insect did a large amount of damage in the 

 onion marsh and experiments in this county did very little to control its ravages. 



Onion Thrips. Again very connnon and harmful. No results fron^ spray- 

 ing this year. 



Cabbage Root-Maggot. Very little damage by cabbage root-maggot owing 

 to wet weather during the season the flies were laying eggs. 



Asparagus Beetle. These seem to be becoming very common and have 

 done considerable damage by making stems immarketable. 



Bean Root-maggot. Although considerable damage was done in other sec- 

 tions no reports of injury were received from this county. 



Tobacco Worm. Very common : controlled in a great many instances by 

 spraying with arsenate of lead, considerable number trapped bv poisoned James- 

 town wpod. 



