Invite Liquid Lure and Invite Fruit Fly Lure do contain different attractants that are privy to the manufacturer and not disclosed. The Invite Fruit Fly Lure is geared towards fruit flies and the Invite Liquid Lure is geared towards other pests.
Invite Fruit Fly Lure is going to attract all fruit flies, phorid flies, and drain flies.
The Invite Fruit Fly Lure will work outside with very limited results. We recommend Fertilome Triple Action Plus II with 70% Neem Oil to be used for fruit fly control on black berries. Fertilome Triple Action plus can be applied to fruits and vegetables all the way up to day of harvest without causing any harm to the plant or you.
Invite Fruit Fly Lure is for Fruit flies, phorid flies, and drain flies.
Invite Fruit Fly Lure is a 35 g syringe, you would do 0.4 g placements, which is about 1/2” long 1/4 inch wide so will do approx 87.5 placements