The house must be fumigated, and the trees syringed on the least appearance of aphis.
The red spider and aphis have no special fondness for the Aster.
Never allow the seedlings to suffer from want of water, or to become a prey to aphis.
Other remedies for aphis are spraying with a hard stream of water.
They are often accused by the careless observer of the injury, instead of the aphis.
The grain aphis, in certain years, desolates our wheat fields.
The aphis, or plant louse, often covers the young shoots of the vine, sucking its juices.
aphis vitis is most destructive to vines, as aphis ulmi is to the elm-tree.
The observations of naturalists have chiefly been confined to the Hemipterous genus aphis; but these early attracted their notice.
The aphis, or “green fly,” must also be destroyed; tobacco may be used.