opuntia cochineal scale and ladybugs

beetle biodiversity biological bird bug cacti cactus carmine coccinellidae coccus cochineal coleoptera control cryptolaemus dactylopiidae dactylopius development enemy entomology hemiptera hyperaspis insects lady ladybird ladybug ladybugs mexico montrouzieri native natural nature opuntia opuntiae pear pears pest plant predator prickly scale trifurcata wild wildlife