Here’s a general approach (always follow the product label for exact mixes):

Read the label first: Check dilution ratios — most horticultural and neem concentrates require a specific mix (e.g., 1–2 tbsp per gallon of water).

Mix thoroughly: Fill your sprayer with water, add the concentrate, shake or agitate, then apply evenly.

Spray early/late in day: Avoid spraying in direct midday sun — work in early morning or late afternoon to prevent leaf damage.

Reapply as needed: Many organic repellents need repeat applications every 7–14 days or after rain.