Well for the past 3 years i have been dealing with this problem at a community garden plot that i belong too especially with growing giant pumpkins. In particular This only affects the giant pumpkins for the most part. It kills peppers too. Im considering likely that its phytophthora capiscum. Im somewhat sure that its phytophthora that hits each year usually around the same time. Especially after excessive almost flooding rains and then after the problems hit as the field starts to dry out. Massive damage will occur just in only a few hours time, wiping out 10 foot sections of vine at a time. My giant pumpkin plants will run out 25 feet per plant and about 20 foot wide, trained in what they consider a christmas tree pattern in the giant pumpkin grower world. for the most part majority of the plant gets buried to create a massive root system. This definately keeps the plant living longer during the outbreaks. At every leaf node is a small root system, its very often that i remove a section of the vine removing the infected part of the vine and some extra to stop it from spreading further down the vines. The outbreaks occur in random spots all over the place, even the newer vines that arent buried under soil get this damage on the vines hovering in mid air. Lately i would continue buring the new growth and over night it would become damaged. I would like to have it analyzed sometime, But for now im wondering if anyone had a better idea as to what it was. Its not unlikely that theres multiple things going on. So i have taken pictures close up of the damage. Its usually hitting the leaf node area or centers of the horizontal vines. Ive sprayed numerous fungicides, daconil, ortho max disease control, aliette, even Banrot. Nothing seems to be doing anything and another year just about over as far as getting any giant pumpkins this year. Last year i think it actually hit later in the season as i had pumpkins just beggining to climb over 100 pounds. It has been a very wet season this year, however its beggining to dry out now, but the damage still continues by the day. I am thinking of trying some copper sprays like kocide as phytophthora supposedly doesnt like copper and is killed by it. Any possible suggestions to prevent the outbreaks or suggestions in general? Thanks in advance.