. The encyclopedia of practical horticulture; a reference system of commercial horticulture, covering the practical and scientific phases of horticulture, with special reference to fruits and vegetables;. Gardening; Fruit-culture; Vegetable gardening. Fig. 1. Round-Headed Apple Tree Borer. Larva and female beetle. {After Chittenden) Spotted Apple Tree Borer Saperda cretata Newm. Related to the round-headed borer and similar in appearance except that it has two white spots on each wing case. The species is quite widely distributed having been found from Michigan to Texas. Remedies the same as f
. The encyclopedia of practical horticulture; a reference system of commercial horticulture, covering the practical and scientific phases of horticulture, with special reference to fruits and vegetables;. Gardening; Fruit-culture; Vegetable gardening. Fig. 1. Round-Headed Apple Tree Borer. Larva and female beetle. {After Chittenden) Spotted Apple Tree Borer Saperda cretata Newm. Related to the round-headed borer and similar in appearance except that it has two white spots on each wing case. The species is quite widely distributed having been found from Michigan to Texas. Remedies the same as for round-headed borer. / Bronze Apple Tree Weeyil Magdalis aenescens Lee. H. F. Wilson Like many of the common insects found in Oregon, this insect appears to be a native of the Northwest, and has only been reported from Oregon, Washington and British Columbia. When first no- ticed, it was reported as destroying whole apple orchards, but later observations show that most of the feeding occurs in the bark. In many instances the bark appears to be dead before the weevils. Fig, 1. The Bronze Apple Tree Weevil; show- ing egg cells in bark of apple. (Original) make their egg punctures, but it has also been noticed that healthy bark affords suitable places for egg deposition and several growers in the Willamette valley report serious injury to apple trees. If one notices the egg cells, as shown in Fig. 1, and cuts away the bark, the larval galleries can be easily traced to where the larvae are feeding. The egg cells are made by the female weevil, which eats out circular burrows to a depth of .08 inch. The eggs are then deposited singly in a few of the pits and the young white larvae hatch from these in a week or two. They feed and develop in these burrows until fall, when the larvae hibernate over, pupate in the spring and change to adults. The adult insect is an elongate bronze black beetle, measuring about one-fifth inch in length. Methods of Control Careful examination of trees in
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