Canola and Mustard: Flea
Beetles (Phyllotreta cruciferae and Phyllotreta striolata)
Publication 812: Field
Crop Protection Guide >
Chapter
6: Canola and Mustard > Flea Beetles
Field Crop Protection Guide 2011-2012, Order
2011-2012 publication
Table of Contents
- Description
- Integrated Pest Management Options
- imidacloprid – Gaucho 480 FL
- thiamethoxam + difenoconazole + metalxyl M + fludioxonil
– Helix Xtra
- imidacloprid + carbaithiin + thiram – Gaucho CS FL
- clothianidin + carbathiin + thiram + metalaxyl – Prosper
FL
- Postemergence
- cypermethrin – Ripcord 400 EC
- deltamethrin – Decis 5 EC
- cyhalothrin-lambda – Matador 120 EC, Silencer 120
EC
- carbaryl – Sevin XLR Plus
- carbofuran – Furadan 480 F
- Related links...
Description
There are two species of flea beetles that attack
canola. The striped flea beetle is approximately 1.5 mm long
and has two cream-coloured strips along its back. The crucifer flea
beetle is bluish-black, 1.5 mm long and does not have stripes. Flea
beetles jump when disturbed, hence their common name. The larvae
are white, approximately 3 mm in length and have brownish heads.
Image 1. Striped (left) and crucifer flea beetle
adults. Flea beetle injury can be severe during first three weeks
after emergence.
Integrated Pest Management Options
Seed Treatment
Hot, dry weather favours this pest. Once the crop reaches the 3-4
leaf stage, the plants are generally established and can compensate
for the feeding damage.
Canola seedlings can withstand up to 25% defoliation in the cotyledon
stage under good growing conditions without a significant reduction
in yield. No thresholds are available for late-season pod feeding
by the second generation of adults. Only when adult populations
are extreme, and dry conditions are hindering the crop from compensating
for the pod damage, is a spray recommended.
Honeybees and other pollinators regularly visit canola and mustard
flowers. Keep insecticide application to a minimum while the crop
is in bloom to avoid bee-kills. Advise local beekeepers before you
apply a pesticide, so that they may take precautions to protect
their bees. For more information on preventing bee poisonings, see
Bee Poisoning, on page 108.
| Active ingredient |
imidacloprid |
| Trade name |
Gaucho 480 FL |
| Rate (product) |
820-1,640 mL per 100 kg seed |
| Comments |
For use in commercial seed treatment facilities only.
Not for use in hopper-box, planter-box, slurry-box,
or other non-commercial seed treatment application. Do not graze
livestock on treated areas for 4 weeks after planting. Do not
use mustard greens that have Gaucho 480 FL seed treatment for
human consumption. Use higher rate if flea beetle populations
are high. |
| Active ingredient |
thiamethoxam + difenoconazole + metalxyl M + fludioxonil |
| Trade name |
Helix Xtra |
| Rate (product) |
1.5 L per 100 kg seed |
| Comments |
For use in commercial seed treatment facilities only.
Not for use in hopper-box, planter-box, slurry-box, or other
non-commercial seed treatment application. Follow resistance
management recommendations as stated on label. |
| Active ingredient |
imidacloprid + carbaithiin + thiram |
| Trade name |
Gaucho CS FL |
| Rate (product) |
1.4 L per 100 kg seed |
| Comments |
For use in commercial seed treatment facilities only.
Not for use in hopper-box, planter-box, slurry-box, or other
non-commercial seed treatment application. Do not graze livestock
on treated areas for 4 weeks after planting. Do not use mustard
greens that have had Gaucho CS FL seed treatment for human consumption.
Follow resistance management recommendations as stated on label. |
| Active ingredient |
clothianidin + carbathiin + thiram + metalaxyl |
| Trade name |
Prosper FL |
| Rate (product) |
1.25 L per 100 kg seed |
| Comments |
For use in commercial seed treatment facilities only.
Not for use in hopper-box, planter-box, slurry-box, or other
non-commercial seed treatment application. 30 day plant-back
on cereal grains, grasses, non-grass animal feeds, and soybean
and dried beans is required. 1 year plant-back interval is required
for leafy, root and tuber vegetables. Can be tank-mixed with
Poncho 600 FS for longer season control of flea beetles. Follow
resistance management recommendations as stated on label. |
Postemergence
Honeybees and other pollinators regularly visit canola and mustard
flowers. Keep insecticide application to a minimum while the crop
is in bloom to avoid bee-kills. Advise local beekeepers before you
apply a pesticide, so that they may take precautions to protect
their bees. For more information on preventing bee poisonings, see
Bee Poisoning, on page 108.
| Active ingredient |
cypermethrin |
| Trade name |
Ripcord 400 EC |
| Rate per hectare (product) |
50 mL per ha |
| Rate per acre (product)
|
20 mL per ac |
| PHI* |
30 |
| Comments |
For use in canola only. Ground application only.
Apply when signs of insect damage appear. Repeat treatment if
necessary. Use minimum 110 L of water/ha. |
| Active ingredient |
deltamethrin |
| Trade name |
Decis 5 EC |
| Rate per hectare (product) |
100-150 mL per ha |
| Rate per acre (product)
|
40-60 mL per ac |
| PHI* |
14 |
| Comments |
Ground and aerial application. Use a minimum of 11-22 L/ha
of water for aerial application. 12-hr re-entry period. |
| Active ingredient |
cyhalothrin-lambda |
| Trade name |
Matador 120 EC |
| Rate per hectare (product) |
83 mL per ha |
| Rate per acre (product)
|
33 mL per ac |
| PHI* |
7 |
| Comments |
Ground and aerial application. Maximum 3 applications/yr.
Maximum 1 aerial application. 24-hr re-entry period. |
| Active ingredient |
cyhalothrin-lambda |
| Trade name |
Silencer 120 EC |
| Rate per hectare (product) |
83 mL per ha |
| Rate per acre (product)
|
33 mL per ac |
| PHI* |
7 |
| Comments |
Ground and aerial application. Maximum 3 applications/yr.
Maximum 1 aerial application. 24-hr re-entry period. |
| Active ingredient |
carbaryl |
| Trade name |
Sevin XLR Plus |
| Rate per hectare (product) |
500 mL per ha |
| Rate per acre (product)
|
200 mL per ac |
| PHI* |
60 |
| Comments |
Ground and aerial application. Seedling stage only
(up to 4 weeks after plant emergance). |
| Active ingredient |
carbofuran |
| Trade name |
Furadan 480 F |
| Rate per hectare (product) |
150 mL per ha |
| Rate per acre (product)
|
60 mL per ac |
| PHI* |
60 (canola) 21 (grazing on mustard) |
| Comments |
Ground and aerial application. Apply 2 weeks after
seeding or when insects are first noticed. Use a minimum of
100 L/ha of water. 48-hr re-entry period. |
Related links...
