The complete genome sequence of tomato leaf curl Palampur virus (ToLCPlV), that infects a papaya ( Carica papaya) plant, was determined. The virus genome was composed of 2,756 and 2,719 nucleotides (nt) in length, encoding all proteins required for replication, encapsidation and movement with the genome features typical of a bipartite begomovirus. Pairwise identity, derived using the Sequence Demarcation Tool (SDT), identified that the virus DNA A and DNA B shared maximum sequence identity 98–99% corresponding to the DNA A of ToLCPlV ([IR: Jir-T65X:08] JF501720) and 96–98% to the cognate partner DNA B of ToLCPlV ([IR: Jir1:T55P:07] FJ660423), respectively. The evolutionary relation using phylogenetic dendrograms of DNA A and DNA B genome components were clustered with ToLCPlV genomes of DNA A and DNA B of Iranian isolates. This study provides the first evidence of a bipartite ToLCPlV infecting papaya in the Sultanate of Oman and also indicates the requirement for more surveillance of this virus in Oman, as ToLCPlV is a major threat to tomato and other vegetable crops in South Asia (India and Pakistan) and in Iran.

Field experiments were conducted to determine quizalofop-Puefuryl (Pantera 040 EC) efficacy for control of couchgrass (E repensi at crop rotation peas-spring cereals. The results showed that herbicides applied at 4-8 leaf stage of E repens enhanced weed control effect. Subsequent treatments i.e. at I 0-12 leaf stage of E repens were less effective. In the following years, the yield of spring cereals depended on efficacy ofE repens control in forecrop i.e. pea. Spring cereals (wheat and barley) gave better yield when higher level ofE repens control was observed.