Bunch of worms eating into flesh of opuntia prickly pear cactus nopal in Karoo

worms opuntia nopal cactus prickly pear karoo eat flesh opuntia ficusindica hardy oudtshoorn shallow focus fig opuntia succulent semiarid klein karoo drought tolerant south africa arid semidesert vegetation plants cactaceae landscape south african dry farm desert space natural region western cape rsa semi arid nature outdoors outside static no people dry area route 62 cactus family prickly pears nopales edible