Plant problems we are seeing in 2024 |
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- เผยแพร่เมื่อ 11 ก.ย. 2024
- Have you been having problems in your garden this year? We certainly have! On this week’s Good Growing Podcast, we discuss some of the most common problems we’ve been seeing in gardens so far this year, including problems with coneflowers, oak wilt, fire blight, and blossom end rot. Plus, where have all the Japanese beetles gone?
Skip to what you want to know:
00:40 - Welcome, Ken! Garden updates and purple tomatoes!
07:40 - Coneflower rosette mite damage vs aster yellows
13:50 - Oak wilt
15:20 - Identifying red oak group and white oak group
18:00 - Oak wilt symptoms
19:55 - Submitting samples
22:05 - Spread by root grafts
25:05 - Fungicide treatment?
27:35 - Fire blight in ornamental pear
33:05 - Blossom end rot in tomatoes
36:58 - Where are all the Japanese beetles?
40:08 - Wrap-up, thank yous, what’s up next week, and goodbye!
University of Illinois Plant Clinic: extension.illi...
Talking summertime tomato growing with #GoodGrowing: • Talking summertime tom...
What causes blossom end rot of tomatoes?: • What causes blossom en...
Pictures:
Red oak leaf: Smithsonian Institution: National Museum of Natural History, Public Domain
White oak leaf: Wayne National Forest, Public Domain
Oak wilt pictures: Joseph O’Brien, USDA Forest Service, Bugwood.org
All others: Ken Johnson, University of Illinois Extension
Contact us!
Chris Enroth: cenroth@illinois.edu
Ken Johnson: kjohnso@illinois.edu
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Cardinals and other birds started eating Japanese Beetles in my yard, and also learning to truly love wasps and bald faced "hornets" and scavenger mammals (they dig up and eat the grubs) has all been a game changer in so many ways.
I’m growing black krim tomatoes mixed in with pie pumpkin vines over a cattle panel archway with raised beds on either side to raise the whole thing up higher. I planted African marigolds on the outside edge of the beds to deter pests hopefully. Things are honestly going pretty well so far despite the rain. They are producing tomatoes all over the place and the vines are very long by now. Pumpkins are just starting to grow larger. No blossom end rot on my tomatoes. People say to throw a tums (for calcium) in the watering can if that starts, I haven’t had to try it yet but that’s what people say to do. I’m in the farm country part of Illinois, rural area. The archway is in part sun conditions as it only gets sun half the day. I don’t know if that matters, but I put it in anyway. My yard has a lot of trees so it’s unavoidable.
Oh no... surging Oak Wilt seems a particularly dark harbinger of the times. 😢 My favorite trees..
I've done the root graft trenching on red oak with an air spade. Worked great to retain healthy grass and less damaging than a stump grinder. Probably not scalable to dozens of trees though.
Good riddance to ornamental pears. I hate doing those antibacterial injections on them.
As always, love the bloopers! 😂
Speaking of bloopers, Japanese beetles are like the uninvited guests that just won’t leave. Every year, they crash my garden party and munch on my plants like it’s an all-you-can-eat buffet. I try to play bouncer and hand-remove them, but there are just too many of those little party crashers! 🎉
So, I’m thinking bait traps are the way to go-like sending out decoy party invites. But here’s the kicker: I hear these traps might actually bring even more beetles to the yard. It’s like inviting them in for snacks before they go for the main course! 🍽🌿 Any non-toxic, beetle-banishing tips out there? 🤔
We had them so bad a few years back and we got traps. They work excellent! We had to empty the bags several times. We also used Milky Spore on the lawn and garden. This year we have had maybe 5 beetles total. It’s been wonderful. And acreage on both sides the neighbors don’t do anything to their land and just left wild.
@@dustyflats3832 Thank you for the suggestions ❤
I’ve heard that the traps lure more to your location! Haven’t tried it myself. Something about pheromones they emit?
I have ducks in the garden and they seem to be doing a good job eating pests (but they ate all my brassicas and peas😂)
Traps will often draw more in than they will catch. I've seen pictures where people have replaced the small bags or containers that come with the traps with garbage bags and have filled them almost overnight.
As the beetles feed/the plants are damaged they plants release chemicals that will attract more beetles. The beetles will also release pheromones that will attract more beetles. If you can keep the beetles off your plants/reduce damage they cause the first couple weeks they are out you will typically see less damage.
@@IllinoisExtensionHorticulture Thank you. Wow, trash bags of beetles that is something else 🤣. So, the best approach is to use netting on the plants that they target to stop the damage?
I have found that every year the same exact blueberry bush gets targeted by the beetles. Comment above on Milky Spore sounds good to control issue locally in lawn.
Never had problems with tomatoes ever until this year. We are 11” above avg for precipitation so far this year and less than 2” away from annual average of 37”. The tomatoes are stunted and blight showed up 3 weeks early. Normally it shows up first week of august. Other plants were advanced by 2 weeks so not sure if the tomatoes are naturally dying back as the pattern on the leaf doesn’t look like blight.
We have had only about 5 Japanese beetles this year!🎉. Few years back we couldn’t go outside they were that bad! We started using trap bags and had to empty them several times and we used Milky Spore on the ground. We are surrounded by two other acreages that are wooded. Aparently it’s paying off or the beetles died from all this rain.
Mosquitoes are the worst they have Ever been and I dread working in the garden because of them. It’s been a jungle atmosphere and to wear a head net and covered up is a very uncomfortable situation. Z5a, WI.
One thing I wish I had known was to get apple trees resistant to cedar rust as we have a lot of cedars. I may have to pull them. And rust on hollyhocks were horrible this year and never had a problem before. Apparently there are rust resistant ones now. And mildew on bee balm the same. And with all this rain I actually had blossom end rot on tomatoes and there is plenty of nutrients. I didn’t mulch heavily this year because of all the rain and switched to granular fertilizer. We did have gypsy moths on trees, but read that the rain lowered the count because I think there is a bacteria that does them in with a lot of rain.
The wildlife pressure has been more extreme than last year in severe drought-that I don’t understand.
Great show, thx or the tips.
Me also and I have been planting tomatoes the same place the last 20 years
We still have those darn Japanese Beetles in the South! (NC) I’m originally from tri state area of WI-WI, MN, IA, and even though you are an IL show, it reminds me of home. Haha
Japanese Beetle population is definitely down here in the suburbs of Chicago. Last several years it was horrible, but this year I’ve only seen a couple of them. Hope it remains that way! Regarding tomato issues, does the Bonide stop rot for blossom end rot help in your opinion? I feel like it has helped in the past to knock out blossom end rot after it started to show up in my tomatoes, but just curious what you think. Because of the intense rains here recently, many of my tomatoes have split to irreversible levels and then rot. Some can heal their cracks and grow on but a lot cannot. I’ve not seen this before, but I’m growing a new variety. I think I’ll try getting a more split-resistant variety next year. I was trying to water appropriately before all the rains, so not sure what else I can do? Thanks!
I’ve read to take a shovel and sever some roots around Tina that get cracks from too much water. Haven’t tried it, but makes sense. And we have had only a handful of beetles also in WI. We used Milky Spore on yard and beetle traps for several years before because they use to be so bad you couldn’t go outside.
@@dustyflats3832 Thanks for your input!
I don't have any experience with that product. It may work as a temporary solution, but not a long-term fix.
Cracking happens when the fruit take up too much water and the skin can't expand fast enough so it cracks. Consistent watering/soil moisture levels can help prevent cracking. If we get a lot of rain in a little time, there isn't much we can do, though.
@@IllinoisExtensionHorticulture thanks for your reply!
Great show, thank you for sharing so much information, so succinctly!
Glad you enjoyed it!
Most of my shrubs are not growing fast enough!
There's still hope!