-590- 
Maryland F. L. Campbell (October 1): .Toward the end of September 
this insect was observed in very great abundance in the Rock 
Creek Park section of Washington, D. C. , where it had completely 
destroyed a recently sod ded' '••law^. 
0OMHDU RED SPIDER (Tet ran^chus telarius L. ) 
Ohio E. W. Mendenhall (October 21): The red spider mites are 
very bad on arborvitae evergreens in a nursery near l\ T ew Carlisle, 
Evergreens in one of the nurseries in Ashland are badly 
■ infested. 
Minnesota A. G. Haggles (September 26): Red spiders are very abundant 
on raspberries, zinnias, apples, etc., throughout the State. 
Utah G-. F. Knowlton (October 13).: Red spiders are still damaging 
sugar beets in many Cache Valley fields. 
Washington M. A. Yothers (October): , During the season the common red 
spider has been the most abundant and injurious the orchardists 
, can recall in-; the' Wenatc.hee district. .It lias been particularly 
injurious to the Delicious apple trees (foliage and fruit). 
The unusually mild winter of 1929-30, -.v. -/ . 
the early spring-, and the mild, dry summer were doubtless 
conducive to maximum development of this pest. 
In migrating to the soil in late summer and early fall 
countless numbers of the mites were caught and killed in the 
chemically-treated codling moth bands and in tree tanglefoot 
bands placed abotit the tree trunks. 
