Unlike bacteria and viruses they have the advantage of infecting the insects by contact alone, although they are out competed in efficiency by chemical pesticides.
Dǎɣ animašray ən bactérietan əd dǎɣ virustan, ilan tadhil nasimilse ən ɣišinširan fal banan anmidis, ahusken aqalan okayan dǎɣ aśahat fal pesticidetan chimique.