Abstract
The average mealy bug (Phenacoccus solenopsis Tinsley) population was maximum (2.69, 2.40 and 1.73 adults/plant) on Parthenium hysterophorus at wasteland, in or near field and weeds present near stacks at Muktsar. At Ferozepur, the mean mealy bug population was 1.10 adults/plant on cotton. On the weeds, near or in the field, the maximum population (5.94 adult/plant) was recorded on P. hysterophorus followed by Digeria arvensis (3.74 adults/plant). The population was 2.69, 2.66 and 2.86 adults/plant on Sida acuta, Abutilon theophrasti and Achryanthus aspera, respectively. On wasteland weeds, similar trend was observed, i.e. maximum population was on P. hysterophorus (7.31 adults/plant), while minimum (3.00 adults/plant) on S. acuta, during 2008. Similar trend was followed in 2009 in Muktsar and Ferozepur but the population was lower than the previous year. Among the weeds, P. hysterophorus was the most preferred host for multiplication. During carry-over studies all the stages and ovisac was maximum, followed by detached leaves in Muktsar and in Ferozepur again on P. hysterophorus. In Ludhiana, the maximum population was observed on Hibiscus sp. followed by ratoon cotton crop.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
