. Bulletin : report of Agricultural Experiment Station, Agricultural and Mechanical College, Auburn, Ala. Agriculture -- Alabama. INSECTS INJUEIOUS TO STOEED GKAIN. The Pea Weevil. [Bruchus 2')is{, Linn.) The pea weevil is a small beetle about three-sixteenths of an inch in length. It is of a dull gray color, with a few markings on the back and occasionally a white spot on the thorax. Figure 7 shows this beetle in its different stages enlarged, and with the natural size fig- ures near them. The adult beetle lays her yellow colored eggs singly on the out- side of the young pea pod. As soon as t
. Bulletin : report of Agricultural Experiment Station, Agricultural and Mechanical College, Auburn, Ala. Agriculture -- Alabama. INSECTS INJUEIOUS TO STOEED GKAIN. The Pea Weevil. [Bruchus 2')is{, Linn.) The pea weevil is a small beetle about three-sixteenths of an inch in length. It is of a dull gray color, with a few markings on the back and occasionally a white spot on the thorax. Figure 7 shows this beetle in its different stages enlarged, and with the natural size fig- ures near them. The adult beetle lays her yellow colored eggs singly on the out- side of the young pea pod. As soon as the eggs hatch, Fig. 7. Pea weevil; b, adult; c, full grown ,, •,, •, , larva; d, pupa; g, pea showing exit hole. ^-^^^ ^'^^^^^ ^^^^* "'^^^ Natural size indicated by smaller figures. through the pod and enter the peas. Here they feed, avoiding as a rule the germ, until full grown, when they cut a hole nearly through the seed coat, leaving a thin membrane over the burrow. The larvBB then turn to the pupa stage. But one insect can, or at least usually does, develop in a single pea. The adult beetle issues either in the fall or"more commonly in the The Bean Weevil. (Br2ichus ohtectus, Say.) The bean weevil is a small brownish beetle a little over one-eighth of an inch in length. It resembles very much. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Agricultural and Mechanical College of Alabama. Agricultural Experiment Station. Auburn, Ala. : The Station
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