Black plant hopper (Harmalia heitensis otho):a newly identified insect pets in mukunuwenna (Alternanthera sessilis (L) DC) in the Jaffna district

Balasingham, B.Vijayaratnam, S.2022-01-192022-01-192009Annals of the Sri Lanka Department of Agriculture, 11:p.233https://dl-doa.nsf.gov.lk/handle/1/4129Plant ProtectionBalck Plant HopperJaffna DistrictAlternanthera sessilis (L)Insect PestsBlack plant hopper (Harmalia heitensis otho):a newly identified insect pets in mukunuwenna (Alternanthera sessilis (L) DC) in the Jaffna districtA