<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31319909</termId><termName>biocide</termName><termType>PT</termType><termNote><![CDATA[ Any chemical that is toxic or lethal to living organisms. ]]></termNote><termCreatedDate>2026-03-30 20:26:13</termCreatedDate><relation><relationType>UF</relationType><termId>31319910</termId><termName>biocides</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31305863</termId><termName>biological control agents</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31343819</termId><termName>algicide</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31343821</termId><termName>disinfectant</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31343824</termId><termName>fungicide</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31343829</termId><termName>herbicide</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31343831</termId><termName>insecticide</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31343833</termId><termName>fumigant</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31343835</termId><termName>pesticide</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31343837</termId><termName>oxygen absorber</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31343841</termId><termName>bactericide</termName><termType>PT</termType></relation></term>  </Zthes>