What is the frequency of a photon of wavelength 35 centimeters (cm)? 857 MHz
105 MHz
2.86 Hz
1.16 Hz

the major pests we deal with are insects, weeds and fungal diseases. a pesticide is a product, whether organic or chemical, used to kill the target pest. there are other techniques gardeners should use that can prevent the severe infestations that make the use of pesticides necessary