cactus scale insect and its natural enemy, heather ladybird

beetle biological bipustulatus bird bug cactus caterpillar chilocorus citrus cladode coccinellidae coleoptera concept control cryptolaemus damage diaspis echinocacti enemy ficus fig heather indian indica insect insects lady ladybird ladybug larva larvae macro mealybug natural nature oleoptera opuntia parasite pear pest plant prickly protection scale vermin