Conclusions and Recommendations
Insect sound exposure with frequency variations of 3000 Hz, 3500 Hz, 4000 Hz, 4500 Hz, and 5000 Hz can stimulate the stomata opening area of corn plants than that without sound exposure.The widest stomata opening area is obtained at 3000 Hz, that is 93.7 μm², compared to other frequencies. This shows that the frequency of 3000 Hz is the optimum frequency for insect sound exposure to corn plants. Further study in this line of research should include the physical mechanisms of how insect sound affects the stomata opening, which has not been done in this
study
https://staffnew.uny.ac.id/upload/132309688/penelitian/C24_artikel_THE%20INCREASE%20OF%20STOMATA%20OPENING%20AREA%20IN%20CORN%20PLANT%20STIMULATED%20BY%20DUNDUBIA%20MANIFERA%20INSECT%20SOUND.pdf