With advancement of technology and population growth, the use of power lines and mobile antennas or data transmission is commonplace and practical. By placing these artifacts on agricultural fields, the probability of the effect of the electromagnetic fields created on the farm ecosystem and the garden.In addition to the effects of waves from electromagnetic fields on agricultural plants, studying their effects and especially the intensity of different fields created on the growth and development of pathogenic fungi and therefore their pathogenic activity are less important for researches.
Any effect of increasing or decreasing the growth and development of pathogenic fungi caused by electromagnetic fields ,directly influences pathogenic activity and ultimately increases or decreases the quality and quantity of crop yields. Scientists have thoroughly investigated the effect of waves and electromagnetic fields on microorganisms and plants, as well as animal enzymes. However, the effect of these waves on plant pathogenic fungi has not been considered widely. To fill this gap, the research on the effects of electromagnetic waves and fields on the growth of four pathogenic fungi i.e. Alternaria solani, fusarium solani, Rhizoctonia solani, Macrophomina phaseolina was held. The pathogenic fungi were exposed to electromagnetic waves produced from two routers using the SXT lite5 microtik antenna with intensity of 2.6526 mT for 60 minutes under laboratory conditions. The results showed that the intensity of the electromagnetic fields caused a significant inhibitory effect on the level of statistical probability of p<0.01 of the growth of the colonies of all four fungi compared to the control sample. The highest percentage of inhibition was observed for A.solani with 47.3% and lowest one for M.phaseolina with the percentage of 30.8% . two fungi F.solani with 38.2% , and R.solani with 35.5% correspondently, showed average results.