recently there are a lot of caterpillars on our edible plant leaves, so i bought that spray to see if it will work.
did i buy the correct one? or is there any other products that work better?
Welcome to the Bunnings Workshop Community @chengjianer!
I'm so sorry to hear that your garden has been invaded by hungry pests. Thanks for sharing these photos. It make is so much easier for our community members to provide advice. Let me tag @Noelle and @Adam_W who may have some tips for you.
The spray you have bought will work, but only if it is sprayed directly on to the caterpillars and other pests - it is what is known as a contact insecticide. It needs to make direct contact with the pests.
You may do better with a tomato and vegetable dust, which applies a powder to the leaves of your vegies. When the caterpillars crawl over it or eat sections of leaves with the dust on them, it will kill them. It will also protect against some fungal diseases. Just make sure to wash your vegies in fresh water to remove traces before preparing them for the table.
seems like the money that i need to spend on those insecticide are more expensive than the actual "products" that i will get from the plants.
but i do appreciate your info!
@Noelle and @Adam_W provided alternative products, which will also work. To clarify, the Hortico 750ml Insect Killer Ready To Spray Tomatoes And Vegetables will solve your issue. However, you will need to do a few applications and hit the caterpillars with it. Give the plants a good spray down, making sure to get under all the leaves where the caterpillars hide during the day. You might have more success going out at night when the caterpillars are more active.
Please let me know if you have questions.