( Pesticides ( ( are ( applied ( to ( eliminate ( ( the parasites ) ( of ( both ( ( plants and ) animals ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNS Pesticides)) (VP (VBP are) (VP (VBN applied) (S (VP (TO to) (VP (VB eliminate) (NP (NP (DT the) (NNS parasites)) (PP (IN of) (NP (DT both) (NNS plants) (CC and) (NNS animals))))))))) (. .)))
Pesticides are applied to eliminate the parasites of both plants and animals.
(ROOT (S (NP (NNS Nematodes)) (VP (MD can) (VP (VB be) (NP (NP (DT a) (NN parasite)) (PP (IN of) (NP (DT both)))))) (. .)))
Nematodes can be a parasite of both.