Leaves, grass blades, etc.
It could be nematodes or aphids eating your chrysanthemums.
you have scale insects on your roses and aphids love scale insects ,spray with white oil or otherwise get a heap of lady birds and they love aphids
Nothing, they help farmers by eating the aphids that eat their crops.
Where to get Aphids,Scales, and Mites=If your wondering where to get aphids,scales,and mites for a ladybug, since it is said that ladybugs are a gardener's best friend for eating the aphids,scales,and mites, your most likely to find the things above on flowers,leaves,grass,and trees.=
Aphids produce honeydew,and ants use it as a source of energy to them, and in exchange they provide protection against aphids predators.
No, infact they help plants by eating aphids that damage plants.
Lady Bugs definitely love aphids.
Aphids are considered herbivores, as they feed on plant sap. They are not omnivores (eating both plants and animals) or detritivores (feeding on decaying matter).
By eating them, mostly. For example, a ladybug can eat hundreds of aphids a day, thereby saving the plant from being sucked dry by the aphids.
A ladybug eats aphids usually but sometimes other plant-eating insects. Ladybugs can eat up to 5,000 aphids in their life which is why farmers seem to like the little critters.
Ants will not bother a ladybug unless it is eating the aphids on your plants. Ants will protect aphids from any preditor because of the secretions the aphids produce. Ants will gain up on a large ladybug, any lady bug and bring it down.
By eating insects of which some are pests. Ladybirds are specialists though as their prey is aphids.