Huanglongbing (Citrus Greening) A Major Threat to Citrus in Pakistan

Chohan, S., Holford, P., Beattie, A., Ahmad I., Ullah, F. and Qamar, R.

Introduction – Citrus decline: Citrus decline has been recognised in Pakistan for decades and adversely affects the general health of plants. The problem is widespread and is variously attributed to edaphic factors such as heavy clay soils, high water tables and inadequate drainage, deficiencies in trace elements or deleterious actions of a range of fungal pathogens or nematodes. While these causes of decline do affects citrus orchards in Pakistan, it is likely that the main cause of decline is due to a bacterial disease called huanglongbing (HLB), more commonly referred to as citrus greeting in Pakistan.