Zucchini and most squashes are monoecious, meaning they have both male and female flowers on the same plant. With zucchini, the males usually open first and the females a few days later. As was posted above, the females have small versions of the mature fruit at the base. To ensure pollination, use a small brush or cotton swab, or even the male pistil itself, and stoke first the male part, then the female part at the center of the blossom. Try to use several plants if you have more than one.
Sorry. It sounds a bit dirty to talk like that.
My hubby checks the veggies in the mornings in summer …..and in very hot weather he gives extra water if needed ,he notices if pumpkins have female flowers but no males ,if so ….he gos around to the other side of the house and if there’s males there he picks them and fertilises the females with those ….
It always seems to work….if not …the young pumpkins soon turn yellow and fall off
The female flowers ….on the Kent or what some call Jap pumpkins I picked yesterday , were huge this year
All our veggies / fruit trees have drippers we can operate with our phones , even if we are away , but in extreme weather the garden needs extra water

due to the horrible limestone we have
We both put hour and hours of work into the garden areas we established ,which is not a large area
Last week we picked about 30 kg of apples from our pink lady ballerina tree , 3 weeks before that we picked close to 40 kg off the Golden delicious tree , which we dried about 10 kg ,……. peeled / cored / cut others into 1/4 dipped in citric acid / and sorta vacuumed packed ( mainly just sealed the pack ) and put them in the freezer for winter Apple pies that was about 15 kg
I’ve still got in excess of 10 kg in the fridge …given so many away buy taking to a dance and putting on the stage for people help them selves
( they all get taken )
2 weeks ago I put a box of the golden delicious out the front at a school bus stop / asked people if they wanted some …nah …they said they only eat apples from the shop



……so I ended up putting them in the green bin
@Don Alaska