Gardeners whose gardens are lacking in insect life or who are growing squash in a protected area to avoid pests may need to pollinate these vegetables by hand.
Use a Q-tip to transfer the pollen from a male flower to a female flower. The male flower will have a long thin stem, with the pollen-containing anther in the middle of its flower.
Since squash flowers generally only last a day, be sure to hand pollinate your squash during the morning when the flowers and pollen are in their best condition.