December 20, 2016

Greenhouse IPM Update 12.20.16

Are all your greenhouses tucked up for winter?  And all those poinsettias sold?  Just think, you could be Christmas tree producers!

Do we need another disease on chrysanthemums- especially one carried by thrips?  Are growers seeing this in NYS?  MSU’s research report on tomato spotted wilt on chrysanthemum.

Oh goody, another chrysanthemum disease that looks similar to TSWV!  This stem necrosis virus on chrysanthemum has only been seen in Korea so far.  Whew!

On the plant growth regulator front . .  Information from Joyce Latimer at Virginia Tech on why PGR labels aren’t specific by crop. And e-GRO’s PGR MixMaster app to help you calculate amounts. There are lots of other reports on PGR application research at e-GRO, too.

And in preparation for next year’s poinsettias – can you really start too soon thinking about them? – an article on biocontrol for poinsettia
And information on aerial blight on poinsettias – an uncommon disease caused by our unfortunately common friend Phytophthora (so common I was forced to learn to spell it correctly)  (remember to check NYSPAD for NYS labels of any pesticides)

Oh, just one more beast to keep an eye out for – and aphids are likely to pop up earlier in the spring than we like – the foxglove aphid. Getting to be much more common in greenhouses.

Well maybe another – broad mite in pepper.  Do you have gnarly looking leaves?  Look VERY closely for this pest.

Enough for this time!

Some lovely sunny days lately!  Have a great week!

August 31, 2016

Greenhouse IPM Update 8.31.16

Life on the lake…..ahhh.  Even though I am (really, I am) working.

A virus to watch out for – tomato spotted wilt in chrysanthemums.  The MSU article won’t connect but here it is via Floradaily.  And so you have lots of pictures – here and here.

Yet another pest to keep an eye out for.  Pepper weevil We don’t have too many greenhouse pepper growers in NYS that I know of but it is a pest in the greenhouse pepper industry in Leamington ON – not that far away.

And while we are at it – insects AND chrysanthemums – Chrysanthemum aphid.

Lettuce be clear – growing greenhouse greens year ‘round requires lots of environmental monitoring.  A nice article with information from Neil Mattson.

Do the dew! Learn how to calculate a dew point and how it might affect disease incidence in your greenhouse. An article and a webinar Sept 8.  (I hadn’t hear of Upstart University which is online and for profit but might have some good information.)

How often do you hear this question: Are you keeping your bumblebees cool enoughLearn how to answer it.

Keeping things warm – solar/thermal greenhouse heating.  When I met Rob Hastings he said his first year farming there was a frost in almost every month.  So he understands the need for alternative methods.

There’s more but I save it so you can enjoy the day…