Garden Plants and Their Problems
ENEMY DAMAGE CONTROL
Viburnum See Snowball. Do not use any sulfur spray or dust on Viburnum
carlesii.
Violet
Red spider Very common; leaves yel- Spray with Aramite or
  low. Malathon.
Violet sawfly Small black or green larvae Spray with DDT.
  feed on foliage at night.  
Slugs Chew large holes at night. Metaldehyde bait or chlor-
    dane.
Violet scab Red spots with white cen- Remove and burn affected
  ters become raised scabs on parts. Copper spray or Fer-
  leaves, stem. mate may help.
Virginia Creeper
Leafhoppers Foliage nearly gray. Spray with DDT.
Japanese beetles Foliage lacy. Spray with DDT.
8-spotted for- Striped orange, white, and Spray with DDT.
ester and black larvae feed on termi-  
other cater- nal shoots.  
pillars
Leaf spots Brown spots on foliage. Copper or Fermate spray.
Walnut
Scales Many species on bark. Dormant oil spray except
    on black walnut, lime-sul-
    fur for that.
Aphids Include very large hickory Contact sprays.
  aphid on trunk.  
Caterpillars Many kinds feed on foli- Spray with lead arsenate or
  age. DDT.

WALNUT ROOTS ARE TOXIC TO SOME OTHER TREES AND SHRUBS, ESPECIALLY RHODODENDRON, AND TO VEGETABLES; KEEP THEM AT A DISTANCE.

Watermelon        
Beetles See Cucumber.      
Anthracnose Leaves scorched; fruit spots Spray with Dithane or Par-
  first raised, then sunken. zate. Black Kleckley is re-
      sistant.  




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