. The standard cyclopedia of modern agriculture and rural economy, by the most distinguished authorities and specialists under the editorship of Professor R. Patrick Wright ... Animals. Bruchus rufimanus (the Bean GrainBeetle; see accompanying figs.) is very destruc-tive to field and garden beans and peas. Thefemale lays her eggs when the beans are inflower; the maggots hatch and eat into theseeds, generally forming an oval cell in theinterior; these maggots are yellowish-white. and when full fed they change to pupae; andthe beetle, when it hatches, eats its way throughthe skin of the bean. Th
. The standard cyclopedia of modern agriculture and rural economy, by the most distinguished authorities and specialists under the editorship of Professor R. Patrick Wright ... Animals. Bruchus rufimanus (the Bean GrainBeetle; see accompanying figs.) is very destruc-tive to field and garden beans and peas. Thefemale lays her eggs when the beans are inflower; the maggots hatch and eat into theseeds, generally forming an oval cell in theinterior; these maggots are yellowish-white. and when full fed they change to pupae; andthe beetle, when it hatches, eats its way throughthe skin of the bean. The beetle is smallerthan B. piai (the Pea Beetle), black, variegatedwith white and tawny; the base of the hornsand the fore legs are tawny. B. pisi (the Pea Beetle) is a most destructivespecies to the pea crops in North America andsouthern Europe, but in England it is onlyfound dead in imported peas. The eggs arelaid in almost every pea, where they hatch;the maggots consume all the contents, and,when transformed to beetles, they force them-selves through the skin, as shown at (11).They are black, variegated with bright brownhairs; the sides of the trunk are notched, with. 1, the Bean Beetle, natural size; 2, magnified; 3, beanBplit open, sliQwing cell at a; 4, maggot, natural size; 5,magnified; 6, pupa, natural size; 7, magnified; 8, beanwhich has vegetated inhabited by beetle; 9, Pea Beetle,natural size; 10, magnified; 11, beetle inside of pea. a whitish spot at the base; there are two whitedots on the disk of the wing cases, and an ir-regular line of white dots; the rump is whitish,with four large black spots; four basal joints ofthe horns and fore legs bright tawny; hinderthighs toothed. Prevention.—It is important to avoid sowingiiifested beans and peas. Seeds with holes in-them show that the beetles have emerged, andtherefore they are safe as regards future attack,though their germinating power may be im-paired. Where the beetle is still in the seed,its presence may be de
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectagriculture, bookyear
