Old walls in which the pointing is bad and the bricks full of nail holes, etc., are very difficult to keep free from red spider.
The red spider and aphis have no special fondness for the Aster.
The hop-wash of soft soap and quassia, so effective against aphis attack, is of little avail in the case of red spider.
red spider, a spinning mite, is a great pest in dry summers.
They are liable to the attacks of thrips and red spider, which do great mischief if not promptly destroyed.
Yet this depth, which would not drown a red spider, was the ocean.
If the red spider or the mealy bug attack them, they may be syringed with tobacco water.
After taking indoors they must be near the glass, and syringed frequently to keep off red spider.
Dryness of the air, especially from fire heat, is followed by the appearance of the minute red spider on the leaves.
They are at their best when grown along the ground where the moisture keeps them free from the attacks of red spider.