. Annual report. Entomological Society of Ontario; Insect pests; Insects. 60 REPORT OF THE ENTOMOLOGICAL To test certain cultural treatments three linear blocks (200 feet bv 12 feet), dhided into 8 sma1! (25 feet x 12 feet) plots each, were laid out across the field 20 feet apart. This arrange- ment provided 4 treatment replications and facilitated the use of regular farm equipment. On July 12 the following treatments were applied: 1. Ploughed, 4 inches 2. Ploughed, 4 inches: disked and rolled 5. Ploughed, 6 inches 4. Ploughed, 6 inches; disked and rolled 5. Check, no treatment. In order to de
. Annual report. Entomological Society of Ontario; Insect pests; Insects. 60 REPORT OF THE ENTOMOLOGICAL To test certain cultural treatments three linear blocks (200 feet bv 12 feet), dhided into 8 sma1! (25 feet x 12 feet) plots each, were laid out across the field 20 feet apart. This arrange- ment provided 4 treatment replications and facilitated the use of regular farm equipment. On July 12 the following treatments were applied: 1. Ploughed, 4 inches 2. Ploughed, 4 inches: disked and rolled 5. Ploughed, 6 inches 4. Ploughed, 6 inches; disked and rolled 5. Check, no treatment. In order to determine what effect the treatments might have had on the life history stages in the soil, weevil emergence from the plots was recorded dailv from July 13 to August 3. Emer- gence data were obtained by placing cages over the soil in each plot. Cages consisted of inverted 21/9-gallon galvanized sap pails with the rims sunk and tamped firmly into the soil to a depth of 2 inches (Fig. 1). To collect newly emerged weevils each pail was fitted near the upturned bottom rim with a glass vial inserted snuglv into a round opening. The positivelv phototropic weevils entered the vials soon after emergence and were recorded readily. In Fig. 1 the arrange- ment of the experimental area and the placement of the emergence cages, are Fig. 1. Arrangement of blocks and plots in experimental area and method of placing cages for weevil emergence. Bailey farm, 1949. Porter field, 1950: This was a long, narrow, &i/2-acie strip of alsike on Oneida clay loam in Haldimand County. Earlier in the season it had been used for an experiment on the control of Miccotrogus in the growing alsike. "When the crop was harvested, the untreated check areas, comprising about 2y2 acres, were used for post-harvest control tests. Twenty l^-acre plots of 5 treaunents replicated 4 times were laid out. The following treatments were applied on July 28 and 29: 1. Rotary plowed, 3-4 inches 2. Ploughed, 5 inche
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectinsects, bookyear1872
