. Annual report. Entomological Society of Ontario; Insect pests; Insects. 72 THE REPORT OF THE [19 About the middle of Jane cutting was discontinued and the whole bed, rows and all, cultivated up deeply with a large field cultivator. All stalks were then allowed to grow and in a couple of weeks there was a growth of between three and four feet In height. No attention wa3 given to the insects as it was thought their time of doing damage had passed and that the plantation had top enough to suffer no injury. In the third week of July however it was found thai; a new broad of larvae had developed
. Annual report. Entomological Society of Ontario; Insect pests; Insects. 72 THE REPORT OF THE [19 About the middle of Jane cutting was discontinued and the whole bed, rows and all, cultivated up deeply with a large field cultivator. All stalks were then allowed to grow and in a couple of weeks there was a growth of between three and four feet In height. No attention wa3 given to the insects as it was thought their time of doing damage had passed and that the plantation had top enough to suffer no injury. In the third week of July however it was found thai; a new broad of larvae had developed and was working vigorously at the tops of nearly all the plants. They worked from the growing point downward, eating all the green portions as they went. On July 31st the whole planta- tion was thoroughly sprayed, using 4 oz. Paris green to 50 gallons of water, with 2 or 3 lbs. of lime to act as a fixitive. For a few days after many slugs could be found and it was thought that the spraying had not been very successful. However, in a week or so as the insects worked down they came in contact with the poison and were killed. As the summer was very dry this mixture stayed on all season and further damage from the insects was entirely stopped. In some unsprayed plantations which I observed, the insects stripped the plants till they looked as white and bleached as they would in the depths of winter. I heard some gardeners remarking how the drougth had withered up the asparagus and they could not believe that it had been eaten off by an insect. Some plantations where the insects were at work showed a distinct line of demarcation between the deadened tops eaten off by the slugs and the green portion below that was not yet reached. The broods of the insect seem to be very numerous and to overlap one another so that eggs, larvse and beetles may be found any time during the summer. The pupae I have not found but I expect they are in the ground. The destruction by the insect is very gener
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectinsects, bookyear1872
