Citrus orchards are kept in great reverence however its current status is threatened by a number of problems, in which citrus gummosis caused by multiple species of Botryosphaeriaceae which is considered to be important fungal disease of citrus trees (Whiteside et al., 1988).
Lasiodiplodia theobromae a member of Botryosphaeriaceae family is mainly involved in citrus gummosis development whereas other genera of Botryosphaeriacea (Diplodia, Dothiorella, Neofusicoccum, Neoscytalidium) are also reported to be associated with citrus gummosis (Polizzi et al., 2011; Adesemoye et al., 2014).
theobromae associated with citrus gummosis on morphological and molecular basis, because without proper identification of the pathogen, an effective management strategy cannot be devised.
Sample collection: In 2015-2016, samples of the infected bark of citrus gummosis were collected from 30 orchards of major citrus growing areas of Punjab province that included Sargodha, Bhalwal, Kot Momin, Toba Tek Singh and Faisalabad.
0.05 using LSD test to measure the differences in the size of gummosis lesion length induced by pathogen associated with citrus gummosis.
Sweet lime is also grown in different parts of Oman, with Samael district being of great importance in sweet lime production.Despite heavy reliance on citrus in Oman, especially acid lime, citrus species suffer from a number of disease problems, which include witches' broom disease of lime, Citrus tristeza virus, citrus gummosis
and citrus viroids (Moghal et al., 1993; Al-Sadi et al., 2012a, b; Al-Harthi et al., 2013).
Citrus gummosis is caused by several Phytophthora species .
Frequent outbreaks of citrus gummosis in Kenyan citrus orchards have been reported, yet the identity and distribution of the Phytophthora species causing the disease are unknown.
The distribution and prevalence of Phytophthora species associated with citrus gummosis in Kenya is shown in Table 1.
 that the species is one of the most destructive citrus gummosis pathogen and predominates in very important regions of citrus production.