June 15, 2009
PMC supports ornamental trials
By Jen Llewellyn
OMAFRA nursery crops specialist
Each year OMAFRA specialists participate in the minor use workshops in Ottawa, organized by Agriculture Agri-Food Canada’s Pest Management Centre (PMC). By using the term minor use, I am referring to label expansions for pesticides that are already registered in Canada, but on other crops. We meet to set priorities for pest management for various crops across Canada. We also do a lot of networking with government, industry, consultants and the registrants.
Peter Isaccson, CNLA minor use coordinator, and I have been successful in past years in obtaining pest management priorities for outdoor ornamentals (nursery, landscape). After the priority has been appointed (e.g. leafhoppers on outdoor ornamentals), we work together to plan research trials that will demonstrate efficacy and crop tolerance. This data is required in order to expand the product label to include outdoor ornamentals. This year, the PMC is supporting trials for leafhoppers on aphids, tar spot on Norway maple and assembling and submitting data for the pesticide label expansion package. There are new active ingredients for pest management in outdoor ornamentals. In many cases, these newer products are a lower toxicity than some of our traditional products.
Monitor for the following pests and diseases:
b) In areas where the following phenology plants (500-700 GDD Base 10oC
Monitor for the following insects and diseases:
OMAFRA nursery crops specialist
Each year OMAFRA specialists participate in the minor use workshops in Ottawa, organized by Agriculture Agri-Food Canada’s Pest Management Centre (PMC). By using the term minor use, I am referring to label expansions for pesticides that are already registered in Canada, but on other crops. We meet to set priorities for pest management for various crops across Canada. We also do a lot of networking with government, industry, consultants and the registrants.
Peter Isaccson, CNLA minor use coordinator, and I have been successful in past years in obtaining pest management priorities for outdoor ornamentals (nursery, landscape). After the priority has been appointed (e.g. leafhoppers on outdoor ornamentals), we work together to plan research trials that will demonstrate efficacy and crop tolerance. This data is required in order to expand the product label to include outdoor ornamentals. This year, the PMC is supporting trials for leafhoppers on aphids, tar spot on Norway maple and assembling and submitting data for the pesticide label expansion package. There are new active ingredients for pest management in outdoor ornamentals. In many cases, these newer products are a lower toxicity than some of our traditional products.
Diseases and insect pests In June
a) In areas where the following phenology plants (250-400 GDD Base 10oC):
Kolkwitzia amabilis (beautybush) are blooming
Philadephus coronarius (mockorange) are blooming
Syringa reticulata (Japanese tree lilac) are blooming
Catalpa speciosa (Northern catalpa) are blooming
Philadephus coronarius (mockorange) are blooming
Syringa reticulata (Japanese tree lilac) are blooming
Catalpa speciosa (Northern catalpa) are blooming
Monitor for the following pests and diseases:
| PLANT | PEST |
| ash | oystershell scale (crawlers, nymphs) |
| birch | bronze birch borer (larvae) |
| cedar | cedar leafminer (adults, larvae) |
| cherry (Prunus) | peach tree borer (adults, eggs, larvae), Eastern tent caterpillar (pupae, adults) |
| deciduous trees | plant bugs, aphids, leafhoppers, Gypsy moth (larvae, pupae) |
| elm | elm leaf beetle (larvae) |
| euonymus | Euonymus webworm (larvae, pupae), Euonymus scale (crawlers), black vine weevil (adults) |
| evergreens | spruce spider mite (adults, eggs, nymphs) |
| honeylocust | leafhopper, pod gall midge (larvae) |
| juniper | juniper scale (crawlers) |
| larch | larch casebearer (adults) |
| lilac | lilac borer (adults, eggs) |
| mountain ash | mountain ash sawfly (larvae) |
| pine | European pine shoot moth (larvae), pine needle scale (crawlers) |
| rhododendron, yew | black vine weevil (adults) |
| rose | rose chafer (adults), rose slug [sawfly] (larvae), two-spotted spider mite (adults, eggs) |
| viburnum | Viburnum leaf beetle (pupae, adults) |
Hydrangea arborescens ‘Grandiflora’ are in full bloom
Sambucus canadensis are in full bloom
Yucca filamentosa are in full bloom
Sambucus canadensis are in full bloom
Yucca filamentosa are in full bloom
Monitor for the following insects and diseases:
| PLANT | PEST |
| ash (green) | leopard moth (larvae), emerald ash borer (adults, eggs, larvae) |
| deciduous trees | Lecanium scale (nymphs), aphids, plant bugs (nymphs, adults), leafhoppers (nymphs, adults) |
| elm | European elm scale (crawlers) |
| euonymus | black vine weevil (adults, eggs), euonymus scale (2nd generation crawlers) |
| honeylocust | leafhopper, podgall midge, honeylocust mite |
| juniper | juniper scale (nymphs) |
| maple, silver | cottony maple scale (crawlers, nymphs) |
| mountain ash | mountain ash sawfly (larvae), rose chafer (adults) |
| pine | redheaded pine sawfly (larvae), white pine weevil (pupae, adults) |
| rose | Japanese beetle (adults), rose chafer (adults), rose slug [sawfly] (larvae), two spotted spider mite |
| pine | pine tortoise scale (crawlers), pine sawfly (larvae), European pine shoot moth (adults, larvae) |
| spruce | spruce bud scale (crawlers), strawberry root weevil (adults, eggs) |
| viburnum | viburnum leaf beetle (adults, eggs) |
| yew, cedar | Taxus/Fletcher scale (crawlers, nymphs), black vine weevil (adults), strawberry root weevil (adults) |