. Cyclopedia of farm crops. Farm produce; Agriculture. -^N S>4 \. C3r Fig. 301. Bean plant in crop. (3) Spray thoroughly with Bordeaux mixture. The normal .strength should be used : 6 lbs. vitriol, 4 pounds lime, .50 to 60 gallons water. The addition of resin soap will add to the effectiveness of the mixture by making it .spread more evenly, and it will be less easily washed off by rains (resin soap : 2 pounds resin, 1 pound crystallized , 2 quarts water ; boil until a clear brown solution is secured). Add this to one barrel of the Bordeaux. Apply thoroughly with a nozzle giving a f
. Cyclopedia of farm crops. Farm produce; Agriculture. -^N S>4 \. C3r Fig. 301. Bean plant in crop. (3) Spray thoroughly with Bordeaux mixture. The normal .strength should be used : 6 lbs. vitriol, 4 pounds lime, .50 to 60 gallons water. The addition of resin soap will add to the effectiveness of the mixture by making it .spread more evenly, and it will be less easily washed off by rains (resin soap : 2 pounds resin, 1 pound crystallized , 2 quarts water ; boil until a clear brown solution is secured). Add this to one barrel of the Bordeaux. Apply thoroughly with a nozzle giving a fine spray. The first application should be made just about the time the third leaf is expanding, or. ;*<'C. Fig. 302. Bean harvester. earlier if the disease appears to any considerable extent. Repeat the application three or four times at intervals of ten to fourteen days or whenever the rains wash the Bordeaux off. (4) Do not hoe or cultivate diseased beans when they are wet, as this will tend to spread the dis- ease to healthy plants. Insect enemies. The most troublesome insect pest of the bean industry in localities where it abounds is the bean- weevil {Bruchus oUectus). The adult is a brown- gray beetle about an eighth of an inch in length. In the field, the eggs are deposited on or inserted in the pod through a hole made by the jaws of the female and through openings by the drying and splitting of the pods. In dried beans the eggs are dropped loosely among the beans or placed in the holes made by the beetles in their exit from the seed. The eggs hatch in five to twenty days, being much influenced by temperature. The young larvcB burrow into the beans and there undergo their transformations, emerging as mature beetles. The larval stage lasts eleven to forty-two days, and the pupal stage five to eighteen days, so that the life-cycle covers a period twenty-one to eighty days according to season and locality. Hence a number of generations are produced annually. In l
Size: 1835px × 1362px
Photo credit: © Central Historic Books / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, booksubjectagriculture, bookyear
