While a high concentration of aphids on your milkweed may look “bad”, these insects are not necessarily causing harm to monarchs; unless they are in extremely high density, there are usually not enough aphids to kill the plant. … Make sure to check for monarch eggs and caterpillars first!
Should I remove aphids from milkweed?
The bright yellow aphids found on milkweeds are destructive, non-native pests. It is important to remove and dispose of them at first appearance or they will quickly infest the plant, making it difficult for monarchs to use the plant.
Do aphids like milkweed?
Like many insects that forage on milkweed, Oleander Aphids have adapted the ability to tolerate the toxins in milkweed plants. The good news is that aphids are not a direct threat to monarch eggs or larvae. Aphids will feed on the milkweed plant only; they won’t spread to your other plants.
How do you kill aphids without killing monarch caterpillars?
A mild solution of dish soap and water can also be used to kill aphids on milkweed plants (again, after monarchs have been removed). Spraying this solution directly onto the aphids effectively kills the insects.
Should I kill milkweed bugs?
While it may be disappointing to see monarch eggs, larvae or pupae preyed upon, this is all part of a vibrant milkweed ecosystem. Try not to kill the small milkweed bugs you find in your garden, their presence in the ecosystem is important!
Can I use vinegar to kill aphids?
Vinegar kills aphids by working as a natural contact pesticide that burns them to death. The solution contains acetic acid and water that when sprayed on an infested plant will help control the aphids. It works by clogging up the pores through which the aphids breathe.
Do banana peels keep aphids away?
Add shine and deter aphids by wiping the leaves of plants with the inside of a banana peel. The peel adds shine to leaves while also leaving traces of nutrients and a natural pesticide.
Do ladybugs eat aphids on milkweed?
Oleander aphids feast on the juices of milkweed plants. Lady beetles, better known as ladybugs (but they’re beetles, not bugs) feast on the aphids. The milkweed is the only plant that the monarch caterpillars eat.
Does dish soap kill monarch caterpillars?
A mild solution of dish soap and water will also work. “Contact only” means that the insects have to have the mixture applied directly to their body for it to work. *Use caution with this method because it will also kill monarch larvae if they come in contact with the solution.