These are very destructive parasites that attack valuable crops. Cluster-cups are orange-colored spores…
Sacculina is a genus of barnacles that parasitize crabs. The female Sacculina larva finds a crab and…
Sacculina is a genus of barnacles that parasitize crabs. The female Sacculina larva finds a crab and…
A parasite which feeds as larvae in rose-twigs or upon the leaves. Some species are confined to roses…
These are very destructive parasites that attack valuable crops. Rusty lines and dots appear on the…
These are very destructive parasites that attack valuable crops. Black lines and dots appear on the…