Crop |
Need for seed-dressing when |
Expected loss in severe attack |
Wheat |
|
|
Fungal diseases that damage shoots |
Over 15% of grains attacked |
Approx. 5% |
Glume blotch |
Over 5% of grains attacked |
Approx. 5-10% |
Stinking bunt |
When present |
Up to 70% (unsuitable for bread and fodder) |
Barley |
|
|
Fungal diseases that damage shoots |
Over 15-30% of grains attacked |
Approx. 3-5% |
Barley strip/leaf spot |
Over 5% of grains attacked |
Just under 1% per percentage of plants attacked |
Naked smut |
Over 0.2% of grains attacked |
Approx. 0.75% per percentage of plants attacked |
Rye |
|
|
Fungal diseases that damage shoots |
Over 15% of grains attacked |
Approx. 5% |
Stripe smut |
When present |
Just under 1% per percentage of plants attacked |
Beets |
|
|
Phoma/soil-borne fungal diseases and pests |
No guideline damage threshold |
Severe attacks cause plant death. Additional yields
achieved in trials: 68 hkg/ha or 971 feed units. Latest pesticide produces 113 hkg/ha or
1614 feed units because of better long-term effect. |
Peas |
|
|
Leaf and pod spot |
When present |
Average additional yield in trials: 1.2 hkg/ha |
Fungal diseases that damage shoots |
Over 25% of grains attacked |
Largest losses measured 8.3 hkg/ha |
Rape |
|
|
Alternaria/grey mould/etc. |
No guideline damage threshold |
No importance attached to attacks |
Thrips/flea beetle |
Attacks vary from year to year |
verage additional yield in trials: 2-4 hkg/ha. |