That's either plum curculio or oriental fruit moth larvae inside
the peach. If you still have clean peaches on the tree you need
to spray again.

You're getting good advice here. I've fought this battle myself. If you have any doubts about what you have, slice a few of the peaches that are oozing in half and look at the seed pit. Chances are you will find a tiny little worm that looks a little like a maggot. Another clue that you have OFM (and perhaps PC) is that the tips of many of your branches will wilt and die (called flagging). If you peel the stem of those dead tips open at the right time you will find the little maggot-looking larvae there as well. Bottom line, you should begin spraying as soon as the petals fall off the blooms and continue every 2-4 weeks (some do 4 but I had to do it every 2) until just before harvest. If it rains you probably need to respray soon after.

I hope it isn't too late for you this year. For me, by the time I see the flagging tips and oozing fruit its usually too late and the vast majority of my peaches are already ruined...they just aren't showing it at first. Hopefully your case is different and you caught it before all your fruits got hit. You really should get out there and spray immediately...as in tomorrow morning. One night can make all the difference. Good luck.

So I sprayed the same night following the comments. It of course rained the entire next day so I just sprayed again. I'm trying to be proactive. I lost about 4 more peaches. It has mostly been isolated to one side of the tree so my hope is that I've slowed it down or stopped it.

Below is a picture of my spray. These little critters have ruined my tree for the last few years so I'm open to suggestions. Let me know what might work better, please.

I see now the one guy said it is too mild. I guess I'm off to find something better...

Is this what you are suggesting:

http://www.amazon.com/Spectracide-10525-Triazicide-Insect-1-Gallon/dp/B0037ASSNQ/ref=sr_1_fkmr0_1?ie=UTF8&qid=1432329114&sr=8-1-fkmr0&keywords=Triazicide+Once+and+DoneTriazicide+Once+and+Done+Fruit+Tree

You've spraying with the wrong product. That won't kill anything.

Suggestions then? The guy at the speciality garden shop sold it to me and said it'd take care of my bugs. If not, it would explain a lot...

Triazicide is good, personally I use Ortho Flower, Fruit & Vegetable Insect Killer. It has kick back power and can kill small larvae that are inside the fruit.
You can still harvest the fruit, and cut out the small damage done by the larvae. Depending upon the variety of peach you have and how close you are to harvest, you may be too late, but it's worth a try.

Do you use the concentrate or a different product?

Chris,

Either Triazicide or Ortho (for Rayrose), concentrate is cheaper. Label will tell you how many oz per gal of water you need to mix.

As Rphcfb and Rayrose stated, Bonide Fruit spray is too weak. Unfortunately, most garden center people don't know what work in reality. The only Bonide I use is the spreader/sticker called Bonide Turbo Spreader/Sticker. It helps chemicals stay on longer/better. Mix it with insecticide recommended above, it'll help. Also, you should spray every 10-14 days (depending on how much rain and how heavy is insect infestation) for at least 3-4 times starting at shuck split.

I found some Ortho at the store yesterday and sprayed. I probably should have waited since I'd just used the Bonide, but I'm hoping I saved what is there.

The most satisfying part was seeing what looked like one of the vermin on a leaf above me. I hit it with the spray and it just fell over dead!

They didn't have it from concentrate, and it looks like it is no longer made.

Thanks for the help and I'll follow up if and when I get some fruit.

Chris- There are some organic products that can be used somewhat effectively, but they require much more work and frequent application and even proponents of such products admit they are not as good as standard insecticides- but of course those same people believe that the health and environmental risks outweigh the effectiveness. I'm not about to get into the argument of organic vs non-organic, but its clear from your posts that you're willing to use standard products, so I recommend you disregard the above comment. I also find it a little offensive when someone uses this forum and people looking for help as an opportunity to blatantly advertise and sell merchandise. Between his/her avatar, username, and use of the pronoun "we", it more than obvious that the poster above is closely associate with the company and product he is hawking here (which, by the way, is against the rules of this forum).

Sorry I got a little off-track but I hate to see someone abuse this forum by trying to profit by taking advantage of people who are just looking for help. Anyway, I just wanted to confirm some of the things you have been told here by people like Rayrose- who is one of many good, experienced people here. First, Bonide Fruit Tree Spray is extremely weak and one of the least effective products out there. That is based on my own experience and those of others-as stated above. So if that is what you've been using all this time, it may well explain your problem (as you mentioned). Next, I want to add another voice to the vote for Triazicide. It's readily available as a concentrate (and a ready-to-use version) in most big box stores and is usually sold as "Spectracide Once and Done" in a black bottle. It isn't perfect and doesn't always solve all my pest problems, but it is a world better than Bonide. I have not used the Ortho Flower, Fruit & Vegetable Insect Killer but I value Rayrose's opinion and if thinks its better than Triazicide, then its definitely worth you trying it and I may do the same. Let us know how it goes. Good luck!

I didn't find the Ortho from concentrate- it seems like it is actually discontinued from what I found on the internet. I found it already mixed and it seemed to stop the spreading and I've only noticed the loss of a few more peaches. I'm worried about all the rain this week, but I'm hoping the remaining peaches will survive.

I'd love to go organic and if you can provide more information I'll try it out next season. When I went looking after my first season, I couldn't find much information. It seemed chemicals were the only way to go. Part of why my wife and I started a vegetable garden and planted a peach tree was to go all organic. We've had a TON of success with the garden, but I think we lost the battle with the peach tree a few years ago.

Well I can say you are extremely annoying and even if your products work, the cheap shots, and lack of respect, the unwillingness to pay for advertising speaks volumes here. This is why everybody is leaving this forum. Thanks for ruining it, good job! I encourage all to file complaints of abuse. It really sucks when trolls start forum wars.

So now it looks like I've got scab. I bought Daconil Fungicide based on an old thread I found. It arrived today and I was hoping to spray. However, it looks like I can't spray it during the season. Is that accurate? Is there nothing I can do to stop the spreading? It is only on half my tree.

You can use Captan.