Sometimes this leakage is caused by borers, sometimes it's due to wetness with the high sap pressures of early spring. Hose off the gel and look carefully around the base or where the sap was of the tree. If you do not see borer holes you are in the clear. Just leave the tree alone and it will heal itself up. It's also not a fungus or other disease. I have had this happen several times on young peach and nectarine trees. If it is borers get a insect spray for fruit trees that will protect it you can dig out the borer with a coat hanger if you have them. Your not giving your location so it hard to know your weather...but those trees look great you do need to trim them or thin some peaches in the future to get a bigger peach, It also helps the tree with less stress on the branches. I wish I didn't need to spray my trees and could have what you get...that' s great! Md

I find them year round more or less. Early spring I find the best time to dig them out, they are big enough to be able to track down but most of the damage has not happened yet. This spring I microwaved tanglefoot to get it fluid and painted it directly on the lower 6" of my trunks, to the ground level. I haven't seen a borer since then. Note I dug out 20-30 of them by hand before this treatment. I also treated only 5-year and older trees, the younger ones I used tangle trap instead (less caustic). Scott

I developed the following method which works fairly well. The borers usually enter the tree just under the soil surface and up to about 12 inches on the trunk. I take old tee shirts (or any type of stretchy cotton material), cut them in 3" strips and wrap the strips around the base of a tree overlapping them, digging away soil at the trunk base to a depth of several inches. Then, using a tongue depressor I heavily coat the stripping with Tangle-Foot. This traps and catches the moths when they fly in to lay eggs. Do not apply Tangle-Foot directly onto the tree trunk. This treatment is good for several years before it has to be replaced and does not harm the tree. You will probably have to order Tangle-Foot on line from their website. Very nice, helpful company. They also have developed a spray-on type, but order the original, thick, gooey product and wear rubber gloves when using it as it is impossible to clean off your hands. To deal with your immediate problem try the following old time method. Heat a thin piece of wire with a lighter and quickly insert the hot wire into a borer hole, holding it there for a few seconds. Repeat, treating as many borer holes as you can find. Remember, some of those holes are just under the soil surface and you will need to scrape soil away from the trunk.

I may be wrong, but I believe dursban is off the market - maybe available only for professional use. The others may be only for professional/licensed applicators' use as well. You might have to call around to various pest contriol people to find someone. Try your local county extension agent's office - look in the phone book under county offices or look on-line for a whole state listing. The agent should know if the products are legal and available for homeowners. If there is an orchard in your area, they might be using the product(s) and MIGHT be willing to swing by and spray/apply for you, if very near-by. Since it sounds like one tree, they may not also - they have to do their own, after all - but they may be able to give more info.