What is the wavelength of light with a frequency of 8.56 x 1014 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

hi my dude or dudette

i wish i could but this one is weird give me abc and i can solve it.