A beautiful dragon fruit flower

Many lovers of fruit plants especially dragon fruit beginners often ask questions, dragon fruit I have flowered but why not fall so what fruit cause? dragon fruit plants when we plant and already flowering continues to fall cause is not the occurrence of pernyerbukan so that the flowers fall out and fail to become the fruit. Pollination of dragon fruit itself 2 can be naturally assisted by insects or manually assisted man. Try to see if the dragon fruit when flowering and blooming beetles or bees in your dragon fruit tree flowers? if there is gratitude you do not need to do manual pollination. if it does not mean you have to help with the pollination manually, how can we look together.