Expression of mavdsRNA.Scer\UAS.cLa under the control of Scer\GAL4Gli-rL82 results in a reduction in bouton number at the neuromuscular junction (NMJ) in third instar larvae. Expression under the control of either Scer\GAL4C57 or Scer\GAL4futsch-C380 has no significant effect on bouton number at the NMJ.