Exirel Insecticide for cutworm and aphid control on Ginseng

 

As mentioned in a previous post, Dupont Exirel is now registered for control of variegated cutworm and aphids on ginseng. It is also registered for control of European corn borer, which has been found on ginseng, but does normally warrant an insecticide application.

Exirel insecticide (cyantraniliprole) is in the same insecticide group (Group 28) as Coragen Insecticide (chlorantraniliprole), which was already registered for control of cutworms on ginseng. To prevent the development of resistance, either product should be rotated with an insecticide in another group. Always read the label and follow all directions listed on the label before applying Exirel or any other pest control product.

For control of variegated cutworm, apply Exirel insecticide at a rate of 500-750 ml/ha. For control of aphids, apply Exirel insecticide at a rate of 500-1500 ml/ha. Apply in a minimum of 100 L/ha water. Apply when pest pressures warrant an insecticide spray. Thorough coverage is important to obtain optimum control.

For optimum control of aphids, apply Hasten NT Spray Adjuvant at an application rate of 0.25% v/v or MSO Concentrate with Leci-Tech at an application rate of 0.5% v/v.

Restrictions and Precautions:

  • For pests with a range of application rates, use the high rate under heavy pest pressure.
  • Do not make more than 4 applications per season.
  • Do not apply more than once every 5 days.
  • Do not apply less than 7 day before harvest. Observe a 7-day PHI.
  • Do not exceed a total of 450 g of cyantraniliprole per ha per season.
  • Do not make a foliar application of Exirel insecticide for a minimum of 60 days following an in-furrow or soil application or planting of seed or seed pieces treated with any Group 28 insecticide.
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Dupont Exirel insecticide registered on several specialty crops

The DUPONT EXIREL insecticide label was recently expanded to include several new crop groups which include specialty crops grown in Ontario.  These include:

  • Control of certain caterpillar pests, aphids and flea beeltes on Root Vegetables except sugar beet, Crop Group 1B, (including burdock, celeriac, chervil, chicory, ginseng, horseradish, parsnip, radish, oriental radish, rutabaga and turnip).
  • Control of certain caterpiallar pests, soybean aphid and bean leaf beetle on Legume Vegetables, Crop Group 6 (including edamame, yardlong bean and several others)
  • Control of various caterpillar pests of Low Growing Berries except strawberry, Crop Subgroup 13-07H (bearberry, bilberry, lowbush blueberry, cloudberry, cranberry, lingonberry, muntries and partridgeberry)
  • Control of various caterpillar pests of Peanuts

For detailed instructions on pests controlled, rates and other instructions, refer to the product label.   Labels can be obtained from the registrant or on the PMRA website at: http://pr-rp.hc-sc.gc.ca/ls-re/index-eng.php.

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Brown marmorated stink bug update: distribution, monitoring and research

Hannah Fraser, Entomology Program Lead – Horticulture, OMAFRA Where is BMSB? We have been actively monitoring for BMSB since 2011. As of June 2015, we have confirmed BMSB has established (breeding) populations at 5 locations in Ontario, but based on…

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Late blight update

Melanie Filotas:

Late blight has been confirmed in several locations in Ontario recently. See the post from ONVegetables for more information.

While late blight is predominantly a problem on potato and tomato, specialty vegetable growers should be aware that tomatillo is also a potential host of this disease. Eggplant is not commonly been observed to be affected by late blight, however it is listed as being “occasionally mildly affected” by the disease. Specialty eggplant and tomatillo growers should be checking their crops for signs of this disease.

Note that not all fungicides registered on tomato can also be used on tomatillo. Always check product labels before applying to confirm that tomatillo is listed.

Originally posted on :

Tomato late blight has been confirmed in Chatham-Kent this week. Previous late blight confirmations this season have been in tomatoes in Essex and Elgin Counties and on potatoes in the Orangeville area.

See the late blight post from June 24 for fungicide recommendations for tomatoes in Ontario. Information for potato growers can be found in the July 13 post.

Please contact me if you think you are finding late blight. If possible, samples can be taken to submit for genotyping and research to help address this evolving disease issue. I can be reached at janice.leboeuf@ontario.ca. It’s helpful if you include photos of affected leaves (upper and lower surfaces), as well as stems and fruit if they are showing symptoms. See the tomato late blight photo gallery to review the symptoms.

Previous 2015 late blight posts: July 21, July 14, July 13, June 24

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Hornworms in sweetpotatoes

In the past couple of weeks, we have observed this individual feeding on sweet potato plants in the Simcoe area.

Sweet potato producers who used to grow tobacco will likely recognize this as a hornworm, however it is not the same species as the more common tobacco or tomato hornworm.  This is likely a sweetpotato hornworm.

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Tobacco blue mold reported in northern United States

Tobacco blue mold was recently found in broadleaf and shade tobacco in Connecticut and Massachussets.  In past weeks, the disease was also reported in Pennsylvania and Tennessee.

While there have been no reports of tobacco blue mold in Ontario so far this year, tobacco growers should be scouting their fields regularly for signs of blue mold.  Please report any findings or suspected infections of blue mold immediately.

For more information, refer to the Canadian Tobacco Research Foundation’s blog.

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Hop Research Twilight Meeting (23 July, 2015) Update

Growing_Hops_Ontario_Logo_5 with shadingThere has been an excellent registration response for the upcoming Hop Research Twilight Meeting scheduled for Thursday, July 23, 2015 at the Simcoe Research Station, 1283 Blueline Road, Simcoe.

Please note the RSVP deadline has passed.  Interested participants are still encouraged to register for the event, however, due to catering arrangements, anyone registering after Monday, July 20th will not receive supper during the twilight meeting.

If you have not registered but are interested in attending the meeting, please contact the Agricultural Information Contact Centre (AICC) at Tel: 1.877.424.1300 or Email: ag.info.omafra@ontario.ca

How to get there:
The Simcoe Research Station is located at the corner of Blueline Road and Highway #3 in Simcoe, Ontario (Norfolk County).  The main entrance is at 1283 Blueline Road.  Please follow this link for the location on GoogleMaps: http://www.goo.gl/maps/yaiJa

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