( ( ( Clean ( Planting Material ) ) ( Using ( ( pest ( - ( and disease-free ) ) ) ( planting material ) ) ) ) ( ( can ( reduce ( ( the spread ) ( of ( both ( plant ( parasitic ( nematodes ( and ( banana weevils ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (NNP Clean) (NNP Planting) (NNP Material)) (VP (VBG Using) (NP (ADJP (JJ pest) (: -) (CC and) (JJ disease-free)) (NN planting) (NN material)))) (VP (MD can) (VP (VB reduce) (NP (NP (DT the) (NN spread)) (PP (IN of) (NP (DT both) (NN plant) (JJ parasitic) (NN nematodes) (CC and) (NN banana) (NNS weevils)))))) (. .)))
Clean Planting Material Using pest- and disease-free planting material can reduce the spread of both plant parasitic nematodes and banana weevils.
(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.