New York State IPM Program

April 13, 2016
by Mary M. Woodsen
Comments Off on No Greenhouse, No Grow Light? This Advice Is a Fun Read Anyway

No Greenhouse, No Grow Light? This Advice Is a Fun Read Anyway

Now, I don’t have a greenhouse or even a grow light on my windowsill. But sometimes IPM ornamentals specialist Elizabeth Lamb’s  posts are so much fun to read that I just want to share them with the world.

From now on, it’s Elizabeth’s voice you’re hearing.

I just figured out how to hyperlink in my emails.  I’m quite the dinosaur!  Click on the blue words to get the link if you are a dinosaur like me.

This generalist eats more than just western flower thrips — it'll eat the thrips specialists like Neoseiulus cucumeris too. Photo courtesy natural-insect-control.com.

This generalist rove beetle eats more than just western flower thrips — it’ll eat the thrips specialists like Neoseiulus cucumeris, too. Photo courtesy natural-insect-control.com.

It’s a rove beetle eat predacious mite world out there.  Great information from Sarah Jandricic (OMAFRA) on how to keep your thrips beneficials from eating each other! Also, a little early nursery scouting might be in order – things they are already seeing in Ontario – Bagworms, Viburnum leaf beetle egg masses, and gypsy moth egg masses.

Lots of information from Tina Smith at UMass and Leanne Pundt at UConn
Keeping an eye on those calis. Calibrachoa troubleshooting for diseases and disorders. Or tackling thrips with bios and pesticides  (remember to check for NYS labels on any pesticides)  Lots of other resources linked to this report.

While you’re at it, be nice to your nematodes.   This article makes the point about not storing nematodes in a refrigerator that is opened frequently.  Another temperature shock could be mixing chilled nematodes with too warm water.  Not sure we have the research on this yet, but it makes sense.

What are those strange lumps?  It could be crown gall – found on some lobelias this spring. It is caused by a bacterium and can be spread by water splashing, although it needs an entry point to get into the plant.  No good control so add it to your scouting list.

Do you have a pH or EC (electrical conductivity) meter stashed in your greenhouse that you last used last season?  It probably needs to be recalibrated.  Have you ever done that?  Here’s how! And to keep Margery happy – lovely photos of Thielaviopsis – and how to avoid having your own.

Where have all the archived updates gone?  Well, NYS IPM is in the process of getting a new website and we consolidated all the updates into one blog to archive them  Coming soon.

’Tis the season for greenhouse information — from my email to yours.  Have a good week!

Grow greenhouse crops — or for that matter, Christmas trees? Want to learn more? Give Elizabeth Lamb a shout at Elizabeth M. Lamb <eml38@cornell.edu> and she’ll subscribe you. You can, of course, opt out anytime you want.

May 27, 2014
by Kenneth Wise
Comments Off on Keep Records on Pests

Keep Records on Pests

They’re back! Insect pests, plant diseases, weeds, birds, biting flies — the works. And tracking them year to year is critical. How better to know your options are, this year and in years to come?

So pick up a pencil, smart phone or tablet and write them down on a field-to-field or livestock basis. Write your observations over the course of this summer — each while it’s fresh in your mind. Did potato leafhopper infestations go over threshold in alfalfa? Were corn diseases a problem? Which diseases and what hybrid were infected? Did you have corn rootworm injury? Did you lose wheat to snow mold? Were there new weeds or weed escapes you didn’t expect this year? Got more house flies on your cattle than past years? And bear in mind: cereal leaf beetle is increasing from year to year on wheat. Have you seen it yet?

These records help you better select which management practices to use now and in the future. For example, if you were hit with potato leafhoppers this season and you want to rotate your alfalfa, one management option is to use potato leafhopper-resistant alfalfa. Another example: choose wheat varieties resistant to certain diseases — based on field observations you wrote down last fall.

Likewise, if you have weed escapes you might reconsider your weed control products or even use methods like cultivation Or lots of house flies on your cattle and you sprayed could mean the flies became resistant to the insecticide.

WRITE IT DOWN! Keep records of pests you observe — and their threshold numbers. Because if you wait too long, you might forget what happened.

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