I’m noticing it- just a few leaves but I know I’ve got to do something or I will have defoliated trees in a few months .
I wanted to try spraying whey as I saw a video of that, and actually found a local cheesemaker from whom I can buy some, but she was busy last week so I was going to pick it up this (Easter) week.
I have Immunox, Liqui-cop, and Bonide Captan. I just quickly looked at the directions for Captan and it looks like it could be sprayed at almost any stage of bloom. Mine is FULL of flowers, and while many have lost their petals, other flower buds haven’t even opened yet. I’m almost certain that Captan would harm the pollinators, right? I see and hear hundreds of them as I’m out near the tree during the day. So not sure I can bring myself to spray it
Then again, I don’t know that spraying whey would 1) be effective, or 2) be safe for the pollinators- I just know it’s safe to get on myself!
I’d really appreciate any thoughts. I’m trying not to be mad at myself for not getting copper on them while they were dormant.
Didn’t have my phone with me to get pics today, but here’s a nighttime pic from Feb. 25 of the mama and the sucker-baby I let grow in 2023, as well as a pic from March 30 of the flower buds.
Captan is hard on pollinators. Immunox is somewhat better but still not good. My advice at this point would be wait til petal fall and then spray a mixture of Captan and Immunox. Make sure the spray water is acidic before adding the Captan as it is destroyed by basic water.
Here is a link to agriculture chemicals and their toxicity to pollinators. For Immunox you will have to use the chemical name( it is on the label of your container) to search for it since the brand name Immunox is only used for retail buyers not commercial growers.
I am not familiar with the product that you linked. You could start a separate thread asking about it as new thread probably would get more views and be more likely to get a reply,
In the long term you might consider getting Indar. It is non-toxic to bees and works well as a fungicide especially on brown rot. I use it as a replacement for Immunox since it works better on brown rot and is in the same fungicide class as Immunox. Unfortunately, Indar isn’t packaged for retail sale so probably your best bet to get it is thru a group buy on the forum.
I finally ended up making my own yogurt and sprayed the whey mixed with water two evenings ago. I can’t tell if it’s halted the leaf spot fungus spreading but I’m trying to keep track here. Hope that’s ok! This pic shows leaves with the spots and I’m wondering if the spots on the cherries are also the fungus?
That looks like blossom end rot to me. Its doesn’t seem that bad in my opinion. I would remove the bad ones as the tree will try to continue to grow them, waste of energy for the tree. It is usually a calcium deficiency. I usually add gypsum every once and a great while to all my trees. Every year i add it to my tomatoes and watermelons.
I have 2 carmine Jewel sour cherries and they usually do well but I leave them for the birds as I dont like the taste. However, they flower beautifully.
Wow! Ok, good to know. Thank you, EJh and RosesandApples. MOD, so I’ve got blossom end rot as well as likely plum curculio. Are the dark specks on the fruit likely from the blossom end rot, the plum curculio, or maybe something else? I just presumed it was the cherry leaf spot.
Can anyone tell if the speckles on these fruits are caused by plum curculio, blossom end rot, cherry leaf spot, or something different? I did find this fly, seemingly dead, with its probiscus(?) in/on a fruit.
I have the idea that it’s a waste of the trees energy to keep trying to grow the fruits that have the blossom end rot, so I have been picking those off.
Should I also pick off the fruits that have plum curculio marks/bites? Will attach a clear PC bite/mark.
That looks like a western fruit fly. Their maggots hatch out in the fruit which are white worms. The horse shoe mark is plum curculio which has a worm that hatches out in the fruit. Some of that is not unusual. You can certainly pluck damaged fruit.
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