Population dynamics, distribution and control of drosicha mealybug, Drosicha sp. (Homoptera: Coccidae) on willow tree (Salix wilhelmsiana) in district Skardu Gilgit-baltsitan, Pakistan
Journal Title: Journal of Biodiversity and Environmental Sciences (JBES) - Year 2015, Vol 6, Issue 3
Abstract
Field experiment was conducted at district Skardu Gilgit Baltistan during year 2014 to record the population dynamics, distribution, control measures and natural enemies associated with Drosicha mealybug on Willow tree (Salix wilhelmsiana). Sticky bands and gunny bag wrapping measures were applied in last week of February .Gunny bag wrappings along mud paste revealed that only 12.33 numbers of mealy bug across in 1st week and 71.76 numbers of mealy bug plant-1 were noted in 4th week March while untreated plants population of mealy bug noted after 1st week was 417.33 and 931 mealy bugs plant-1 after 4th week of March was recorded. Four pesticides Difenthuron, Confidence, Neem and Jozer were applied in month of June 2014 when infestation of mealy bug were highest data were taken after 24th ,48th ,72h ,1st week and 2nd week .Maximum mortality rates were observed after 72 hours by Jozer (Imadachlorpid +actameprid (20.0% 19.8% w/w) caused 47.013 % while Confidence, Neem and Difenthuron caused 11.117 ,4.380 and 6.89 % mortalities respectively. Statistically Jozer was significantly more effective than other three pesticides. Population trend of mealy bug with temperature were correlated and the data revealed that a positive significant correlation (p<0.005) was founded with this showed that temperature greatly affect the population and reproduction of mealy bug in Skardu. The natural enemies so for recorded during the studies were Green lace wing (Chrysoperlla cornea) and lady bird beetle (Sumnius vestitus).
Authors and Affiliations
Syed Arif Hussain Rizvi, Sajjad Ahmed, Kamran Sohail,Muhammad Akbar,Farida Begum, Ghulam Raza, Muhammad Ali, Saleem Jaffar
Keywords
Related Articles
- EP ID EP38294
- DOI -
- Views 132
- Downloads 0
Atmospheric Gaussian Dispersion Modeling for Central Region of Iran
This paper describes the atmospheric dispersion modeling using radionuclides for a hypothesis plant in the central region of Iran. pollutants concentration is estimated by using a mathematical Gaussian plume model in M...
The effects of fire on density, diversity and richness of soil seed bank in semi-arid rangelands of central zagros region, Iran
Soil seed banks can play an important role in vegetation restoration after large scale disturbances, particularly after disturbances (e.g. fire) that create gaps in the vegetation structure. It examined the effect of fi...
Inducement of sustainable management planning of Mozogo-Gokoro National Park (Cameroon) by images processing
In accordance with the implementation of forest management sustainability of protected areas, this work is based on detection of changes in the vegetation of the Mozogo-Gokoro National Park, located in ecologically fragi...
Floristic composition and life form classes of district Shangla, Khyber Pakhtunkhwa, Pakistan
The present study was conducted in order to explore the floristic composition and life form classes of district Shangla, Khyber Pakhtunkhwa Pakistan. Floristic survey of district Shangla was conducted from 15 March 2011...
Significance of pollination services in crop and plant diversity in tropical Africa
There exist diverse communities of plants in the tropics. These plants offer habitat to a number of insect pollinators that directly or indirectly play a significant role in sustaining tropical biodiversity through polli...