Editing Vitex agnus-castus (section)

===Diseases and pests===
Thysanoptera, also known as [[thrips]], can cause great damage to the growth and the generative development of ''V. agnus-castus''.<ref>Gimpl A. 2003. Untersuchungen zur Inkulturnahme von Vitex agnus-castus L. Diplomarbeit. Universität für Bodenkultur. Wien</ref> The insect feeds on chaste tree by sucking up the fruit contents or puncturing them. Also, chaste tree is the only known host (especially in Israel) for ''[[Hyalesthes obsoletus]]''. This cicada is the vector for [[black wood disease]] of grapevines. ''H. obsoletus'' prefers ''V. agnus-castus''  as a host to the grapevine. In this case, chaste trees can be used as a biological control agent by planting them around vineyards to trap the ''H. obsoletus''.<ref>{{cite journal |last1=Sharon|first1=Rakefet|last2=Soroker|first2=Victoria|last3=Wesley|first3=S. Daniel|last4=Zahavi|first4=Tirtza|last5=Harari|first5=Ally|last6=Weintraub|first6=Phyllis G.|title=''Vitex agnus-castus'' is a preferred host plant for ''Hyalesthes obsoletus'' |journal=Journal of Chemical Ecology |date=2005 |volume=31 |issue=5 |pages=1051–1063 |doi=10.1007/s10886-005-4247-z|pmid=16124232|bibcode=2005JCEco..31.1051S |s2cid=20799569}}</ref>
''V. agnus-castus'' was found not only to be an appropriate food source for the adult vectors, but also a reservoir of ''Candidatus phytoplasma solani'' (bacterial ''Phytoplasma'' species), the causal agent of the black wood disease in grapevines.<ref>{{cite journal | last1 = Kosovac | first1 = A. Radonji S. Hrnci S. Krstic O. Tosevski I. Jovic J. | year = 2016 | title = Molecular tracing of the transmission routes of bois noir in Mediterranean vineyards of Montenegro and experimental evidence for the epidemiological role of ''Vitex agnus-castus'' (Lamiaceae) and associated ''Hyalesthes obsoletus'' (Cixiidae) | journal = Plant Pathology | volume = 65 | issue = 2| pages = 285–298 | doi=10.1111/ppa.12409| doi-access = free | bibcode = 2016PPath..65..285K }}</ref> 
The pathogen-caused [[leaf spot disease]] can almost defoliate ''V. agnus castus''. Furthermore, [[root rot]] can occur when soils are kept too moist.<ref>Gilman E. and Watson D. 1994. Vitex agnus-castus 'Alba'; 'Alba' Chastetree Fact Sheet ST-665. A series of the Environmental Horticulture Department. Florida Cooperative Extension Service. Institute of Food and Agricultural Sciences. University of Florida</ref>