I potted a Japanese cucumber seedling outside in a pot with store-bought soil about a month ago. The plant initially grew very quickly and vined around the trellis, with yellow flowers popping up regularly.

Now whenever a flower emerges, it quickly shrivels and dies. Also, the leaves are starting to shrivel around the edges and are turning white/yellow. The curly vines are also starting to stop searching and turn brown :(.

I noticed there was what looks like worm/insect trails around the lower leaves, so I sprayed the plant with an insecticide. I also recently sprayed it with some anti-disease spray to try and see if that was an issue.

As for watering, I water them every few days, and less if there's been a lot of rain.

Can anyone point out what I'm doing wrong? Any advise would be greatly appreciated!!!

It's difficult to make a diagnosis without a picture of the damage, but here are some ideas:

Google "leaf miner damage" and see if the trails on your lower leaves are a match. In Hawaii, leaf miners are typically the larva of sawflies. The damage they do is unsightly, but usually it doesn't kill the plant unless there is a large infestation. Another common pest in Hawaii is the melon fly. Their larvae (caterpillars) like to tunnel into the hollow vines and eat the plant from the inside, cutting off nutrients to vines.

One blog that I like to visit, just also happens to have lots of information about plant pests and what time of year to plant certain crops, especially if you live at or near sea level where it's hotter. Check out "A Kitchen Garden in Kihei" at the following URL:

http://akitchengardeninkiheimaui.blogspot.com/

You can also check out the information that UH puts out at the following URL:

http://www.ctahr.hawaii.edu/site/BrowsePubs.aspx

Good luck!