Seed Treatments
Originally written February 1, 2006. Last updated
February 23, 2014
Might be some consequences of pest control using pesticides since we expect them
to stay active longer.
May want to use a planter-box seed treatment as a hedge
Slow developing plants are more susceptible to pest damage.
Diseases
Most seed treatments are active 30 to 45 days.
Apron for Pythium.
Stalk
rots: unclear what early infestation means at end of the season.
Insects
Seed Corn Maggot: corn below ground for extended time period.
First European
corn borer moths attracted to taller corn, use Bt corn when planting early.
Seed Treatments and Corn Seedling Diseases Controlled
| |
|
Aspergillus |
Fusarium |
Helmintho-sporium |
Penicillium |
Pythium |
Rhizoctonia |
| Favorable environment |
|
?? |
Warm, wet soil |
?? |
?? |
Cool, wet soil |
Warm, wet soil |
| |
|
|
|
|
|
|
|
| Symptoms |
|
|
|
|
|
|
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| Seed rot |
|
|
|
|
|
X |
X |
| Root rot |
|
|
X |
|
|
X |
X |
| Lesions on stems |
|
|
X |
|
|
X |
X |
| |
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| Fungicide |
Sample formualtions |
|
|
|
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|
| Captan |
Many |
X |
X |
X |
X |
|
X |
| Carboxin + captan |
Vitavax-captan |
|
|
|
|
X |
X |
| Carboxin + thiram |
Vitavax 200 |
|
|
|
|
X |
X |
| Fludioxonil |
Maxim 4FS |
|
|
|
|
|
X |
| Fludioxonil + mefenoxam |
Apron Maxx RFC, Apron Maxx RTA, Apron Maxx Bean Pak, Cruiser
Maxx Pak, Warden RTA |
|
|
|
|
X |
X |
| Mefanoxam |
Apron XL-LS |
|
|
|
|
X |
|
| Metalaxyl |
Allegiance |
|
|
|
|
X |
|
| PCNB + ethazole |
Terraclor Super X, Terra-Coat L-205N |
|
|
|
|
X |
X |
| Thiram |
Many |
|
|
|
|
X |
X |
| Trifloxystrobin + Metalaxyl |
Trilex al |
|
|
|
|
x |
x |