This book was published in the 1980's or earlier. It is a kid's horror anthology about nature. Stories include a detective that thought a philodendron killed a scientist, and last story about bratty kid and Beelzebub, kid dies by falling into water and being tangled in net.
The philodendron story is ‘Murder in Green’ and can be found with other stories in ‘Nature’s Revenge: Eerie Stories of Revolt against the Human Race’ by Manley, Seon; Lewis, Gogo; Morgan, Jacqui. Published 1978.
https://archive.org/details/naturesrevengeee00manl/page/122/mode/2up?q=philodendron+beelzebub+%22fishing+net%22
OMG that’s it!!! THANK YOU!!
My pleasure.