Like other crops cocoa can be attacked by a number of pest species including fungal diseases, insects and rodents - some of which (e.g. frosty pod rot and cocoa pod borer) have increased dramatically in geographical range and are sometimes described as "invasive species".
[1] Phytophthora capsici Phytophthora citrophthora Phytophthora heveae Phytophthora megakarya Phytophthora palmivora Rosellinia bunodes Rosellinia pepo Phytophthora citrophthora Phytophthora palmivora Ceratocystis fimbriata Ceratocystis cacaofunesta Ceratocystis moniliformis Ceratocystis paradoxa Armillariella mellea Armillariella tabescens Nectria rigidiuscula = Fusarium decemcellulare Lasiodiplodia theobromae = Botryodiplodia theobromae Phytophthora capsici Phytophthora citrophthora Phytophthora hevae Phytophthora megakarya Phytophthora palmivora Verticillium dahliae Mycoleptodiscus terrestris Nectria mauritiicola = Sphaerostilbe repens Rigidoporus microporus = Rigidoporus lignosus