I've never really used insecticides before, but it looks like I need them.
Bugs love my passion fruit vine; I regularly see big holes chewed out of leaves. Bugs like new leaves the best--sometimes, when I can see the plant is going through a growth spurt, it will mainly be a vine extension that grows because I can see most of the new leaves got eaten. I never actually see anything eating it though.
Today, my pumelo tree was crawling with bugs, most of which were the citrus psyllid. The tree already has greening, but with regular fertilizer and root growth hormone application it's starting to come back. But I doubt it can put up with all the bugs on top of greening.
I think insecticide is the best way to deal with the problem. Right now, I'm looking at
this one. I don't want one that harms bees, and I'm unsure of the proper time to apply fertilizer. I haven't applied insecticide before; can anyone help? Thanks.