Spring Trials



<--MAR APR - 2018 MAY-->
S M T W T F S
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
29 30 1 2 3 4 5

[ TODAY ] [CREATE/VIEW]


Member of:

♣

CALIFORNIA SPRING TRIALS NEWS

Poinsettia Disease Management Tips for Mid-Season to Finish
  By Dean Mosdell, Syngenta Technical Services
(10/22/12) -- Common Diseases

One disease that can be problematic throughout poinsettia production is Botrytis or gray mold. It can be most severe near the end of production as the plants get larger and the relative humidity increases in the plant canopy. Gray mold is incited by the fungus, Botrytis cinerea, which causes water-soaked spots on foliage and flowers. Once established, gray mold can infect stems and terminals causing wilting of the plant. Greenhouse temperatures for poinsettia production are ideal for gray mold growth. As part of your scouting practice, check the new leaves for brown "V" shaped lesions at the leaf margins and any tissue that has a brown/gray fuzzy appearance.

Management practices that reduce relative humidity will decrease disease pressure. Practice the following strategies to manage gray mold:

  • Avoid overhead irrigation
  • Maintain good horizontal air flow
  • Increase plant spacing for better ventilation and light access to lower leaves

LINKS:
Poinsettia Disease Management Tips for Mid-Season to Finish


Royal Series by American Takii

Great plug and container performance, producing many large vibrant flowers; the Royal Prince™ Series is more compact than the Royal™ Series; fifteen(15) colors.

Royal Gerbera F1 Deep Pink Royal Gerbera F1 Orange Scarlet Royal Gerbera F1 Red Bicolor Royal Gerbera F1 Salmon Rose