Hello Weirdtrev,
Thank you for responding so quickly, I had no idea what was going on. You seem to have nailed the problem. My JBLs look very similar to the ones in your photo. I never knew that JBLs were vulnerable to those viruses, yuck. I am just growing them for fun for Halloween, but they definitely are not the nice orange I was hoping for. I have several other pumpkin, melon and squash varieties growing -- I hope they don't get infected too. I am gaining new respect for what farmers have to contend with, between the creepy crawlies, viruses, mildews, etc. it is a wonder that anying makes it to market. Thank you for your help.