 |
|
 |
|
 |
|
       |
Bacterial Wilt - Erwinia tracheiphila
  USDA Cooperative Extension Slide Series, The University of Georgia www.ipmimages.org www.ipmimages.org  HOSTS: Cucurbits (cucumber, squash). DESCRIPTION:
This
bacteria causes wilting and death. White ooze is visible at any cut in
the plant tissue. If you touch the cut and then draw your finger slowly
away, the ooze will form strands. LIFE
CYCLE: The
disease is spread by cucumber beetles and
overwinters in their guts. When the beetles feed, the bacteria enters
the plant's water-conducting tissues and begins to multiply. CONTROLS:
There is no
known remedy once plants are infected. To test for infection, cut out
disease area, press drops of sap onto your hand; if sap is milky,
sticky and stings, the plant is infected. Destroy immediately!Cultural / Mechanical: The only measures you may employ are preventative. Keep your plants in general good health. Control populations of cucumber beetles which help spread the disease. Use row covers over seedlings and transplants to prevent cucumber beetles access. Remember to remove row covers when vines start to run and are mature enough for pollination. |
|
|
|
 |
|