African snail invasion? Can large snails be eaten? Disease control experts say that the African large snail is very destructive, will endanger more than 500 crops, and it carries pathogen bacteria on its body, which can spread tuberculosis...
10-26
Fecal test tips: line (tassel) ball, small specific gravity, floating in the water rolling and running; suction spiny head, specific weight, this kind of precipitation method; nettail larvae with Bell, split trematodes to hatch. Japanese split...
10-26