How to makes a homemade spray to drive away flea beetles.

Catnip [ and grass] in a tyre

Have on hand

Catnip
Water

Gather the catnip by the hand full.
Use a mortar to crush the catnip allowing the essential oils to be released easily.
Seep the catnip in the water.

Please note steam distillation is a better way of releasing the essential oil terpenoid nepetalactone that is needed for to really make this spray effective however being practical the above will suffice.

Place in a spray bottle
Spray or drizzle on the plants

Only make what you are going to actually use.

When you are actually using this spray please be aware of the effects the catnip will have on plants that really do not like living next door to catnip. Also if the catnip that attracts the cats from the neighborhood is used will they love the vegetables sprayed to death! Some catnip plants literally have either an intense ten minute hyper relaxing effect or a mighty aggressive behavior effect on the cat ~ all depends on the cats sensitivity to the catnip. Not good if the vegetable patch is guarded by a cat unfriendly dog!