InveInvestigation of Within-Bale Variability of Stickiness Measurement
By Muhammad Naveed Arshad on Mar 27, 2019

WCRC WCRC2

ABSTRACT Cotton stickiness is a serious problem for many producing countries. In Sudan, 1000 bales of the 1996 production WERE selected and sampled to study the feasibility of a bale stickiness classification. Sixteen thousand samples tested on the Sticky Cotton Thermodetector show that within-bale variance increases with the mean. Statistical inv...

Grading Suitable for Commercial Application
By Muhammad Naveed Arshad on Mar 27, 2019

WCRC WCRC2

ABSTRACT Stickiness in cotton is a serious problem confronting both producers and users. The major causative agent of cotton lint stickiness is the honeydew excreted by the insects whitefly and aphid. The sugar constituents of the honeydew are the reducing monosaccharides glucose and fructose and the non-reducing oligosaccharides sucrose and melez...

Up date on Cotton Stickiness Measurement
By Muhammad Naveed Arshad on Mar 22, 2019

WCRC WCRC2

ABSTRACT Different stickiness measurements were used to determine the statistical variability of stickiness in bales contaminated by aphids and white flies to establish an effective bale sampling procedure for estimating the degree of stickiness. Back to Table of contents

Bemesia (Homoptera: Aleyrodidae) Honeydew and Sticky Cotton Relationships
By Muhammad Naveed Arshad on Mar 22, 2019

WCRC WCRC2

ABSTRACT Sticky cotton caused by insect honeydew contamination is a major issue in the cotton industry. Bemisia tabaci (Gennadius) Strain B (= B. argentifolii Bellows and Perring) honeydew contributes to cotton lint stickiness. Increases in thermodetector sticky cotton counts and trehalulose and melezitose were correlated to increasing Bemisia nym...

Honeydew and Seed Coat Fragments: Identifying and Counting Two Major Cotton Fiber Contaminants
By Muhammad Naveed Arshad on Mar 22, 2019

WCRC WCRC2 Fiber Quality

ABSTRACT Spinning techniques are constantly progressing. Equipment is getting faster and more automated. Spinners are less and less tolerant of fiber contaminants. Honeydew and seedcoat fragments (SCF) are a major problem that cannot be detected by HVI systems CIRAD developed techniques for honeydew and SCF detection and quantified them for use by...

Relative Resistance of Gossypium Species to Insect Complex Under Non-Sprayed Conditions
By Muhammad Naveed Arshad on Mar 21, 2019

Crop Protection WCRC WCRC2

ABSTRACT A number of varieties and strains of Gossypium were grown under non-sprayed conditions to evaluate their relative resistance against insects during two seasons 1993-94 and 1994-95. The strains belonged to Gossypium. Barbadense (Pima), G. palmeri, G. arboreum and G. hirsutum. These varieties had varying degree of resistance to insects. The...

Imidcloprid Seed Treatment Effect on Sucking Pests, Predators, Plant Growth and Productivity in Cotton
By Muhammad Naveed Arshad on Mar 21, 2019

Crop Protection WCRC WCRC2

ABSTRACT Imidacloprid seed treatment reduced the jassid populations by 65% in research station studies without affecting predator coccinellids. In farmer participatory trials aimed at area-wide management” of cotton pests during the past two seasons, it reduced jassids by 62-79% and aphids by 66-72% without affecting the predator coccinellids. It...

Chemical Seed Treatments for the Control of Cotton Seedling Pathogens
By Muhammad Naveed Arshad on Mar 21, 2019

Crop Protection WCRC WCRC2

ABSTRACT Seedling diseases of cotton are a very serious problem in Greece because planting starts early in the spring when cold soil and weather conditions favour the development of the disease. The major soil dorne pathogens involved are Pythium ultimatum, Rhizoctonia solani and Thielaviopsis basicola. Cotton seed treatments are designed to prote...

New Developments in Cottonseed Treatment from China, CIS Republics and United StatesNew Developments in Cottonseed Treatment from China, CIS Republics and United States
By Muhammad Naveed Arshad on Mar 21, 2019

Crop Protection WCRC WCRC2

ABSTRACT Research results from the three largest cotton producing areas of the world have demonstrated significant increases in disease control and cotton yields by utilizing new combination chemical seed treatments. In China, 16 formulations were studied at eight field trial sites in four provinces for several years. Combinations of 2-(thiocyanom...

An EAn Evaluation of Insecticide Seed Treatments Against Thrips in Southern Australiavaluation of Insecticide Seed Treatments Against Thrips in Southern Australia
By Muhammad Naveed Arshad on Mar 21, 2019

Crop Protection WCRC WCRC2

ABSTRACT Thrips (Thrips tabaci and Frankliniella schultzei) are common seedling pests of Australian cotton crops. They are controlled using insecticide seed treatments, soil applied insecticide granules or foliar insecticides. To assess the relative value of these control options, their efficacy was assessed in the field. The yield response of cot...

Cottonseed Treatment in Addition to Chemical Control of Sporadic Pests for the Small Scale Farmer
By Muhammad Naveed Arshad on Mar 21, 2019

Crop Protection WCRC WCRC2

ABSTRACT Cottonseed treatment trials over two to three seasons showed that phorate and terbufos have potential as seed dressings to protect young cotton plants against pests. Bio-assays indicated that germinating cotton plants are capable of absorbing and transporting sufficient insecticide to produce satisfactory mortality in pests such as Syagru...

Isolation and characterization of the GbVIP1gene and response to Verticillium wilt in cotton and tobacco
By Fan Qin on Mar 11, 2019

Uncategorized

Isolation and characterization of the GbVIP1gene and response to Verticillium wilt in cotton and tobacco ZHANG Kai †, ZHAO Pei †, WANG Hongmei Email author, ZHAO Yunlei , CHEN Wei , GONG Haiyan , SANG Xiaohui  and CUI Yanli  †Contributed equally Journal of Cotton Research20192:2 https://doi.org/10.11...

Chemical Control of Aphid Populations in Cotton Using Hydraulic and Electrostatic Sprayers and Aphid Alarm Pheromone
By Muhammad Naveed Arshad on Mar 8, 2019

Crop Protection WCRC WCRC2

ABSTRACT In experimental cotton fields in Lianoverghi, Imathia, Greece in 1995 (cultivar Zeta-2) and Velestino, Magnesia in 1996 (cultivar Corina), experiments comparisons were made between different application methods for chemical control of aphids. There were five treatments in a randomized complete block design in four replications. The treatm...

Update on the Area-Wide Budworm/Bollworm Management Program with Virus in the United States
By Muhammad Naveed Arshad on Mar 8, 2019

Crop Protection WCRC WCRC2

ABSTRACT An area-wide management program with Helicoverpa zea nucleopolyhedrovirus (HzSNPV) has been conducted in the Mississippi Delta to control the first generation of cotton bollworm and tobacco budworm in wild geranium. Results are reported for the 1997 area-wide management program using a lower HzSNPV application rate. The HzSNPV formulation...

Use of Pheromones for Pink Bollworm (Pectinophora gossypiella, Saunders) Mating Disruption in Israel
By Muhammad Naveed Arshad on Mar 8, 2019

Crop Protection WCRC WCRC2

ABSTRACT Pink bollworm (Pectinophora gossypiella) is one of the major cotton pests of Israel. Until ten years ago the pest appeared mainly in one region, the Beit-Shean valley, but it has spread all over Israel. The number of spray applications against this pest ranges between 1 and 9, mainly organo-phosphates and pyrethroids. Applications start e...

Dynamics of Whiteflies and their Enemies in Cotton Fields: Implications for Pest Management
By Muhammad Naveed Arshad on Mar 8, 2019

Crop Protection WCRC WCRC2

ABSTRACT The project, entitled “Integrated Pest Management for Cotton” commenced in September 1994 with scientists from four countries, Israel, Egypt, Ethiopia and Zimbabwe co-operating in a joint project funded by the Common Fund for Commodities through the International Cotton Advisory Committee. It seeks to improve the control of honeydew-produ...

The Role of Spiders in the Control of Cotton Pests in the Cotton Cropping Systems of Eastern Uganda
By Muhammad Naveed Arshad on Mar 8, 2019

Crop Protection WCRC WCRC2

ABSTRACT Work on evaluation of crop mixtures for the management of cotton pests has shown beans to be a suitable intercrop that can augement the numbers of gerneralist predators in the cropping systems of E. Uganda. Incidence of generalist predators in the cotton - bean intercrop shows spiders to be more numerous (57%) as compared to other predato...

Inhibition of Esterase Mediated Hydrolysis of 1-Naphthyl Butyrate in the B-Biotype Bemesia tabaci (Hemiptera; Aleyroididae) in Australia
By Muhammad Naveed Arshad on Mar 8, 2019

Crop Protection WCRC WCRC2

ABSTRACT A colourimetric squash test was used to distinguish between native and B-biotype Bemisia tabaci (Gennadius), for field identification in Australia. This test is based on overproduction of esterase iso-enzymes by B-biotype B. tabaci. This test has occasionally been shown to give a false negative due to organophosphates temporarily binding...

Pyrethroid Resistance in the Bollworm Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) in West Africa
By Muhammad Naveed Arshad on Mar 7, 2019

Crop Protection WCRC WCRC2

ABSTRACT The sensitivity of bollworm, Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) to pyrethroids has been monitored in co-operation with CIRAD-CA in research laboratories of National Research Institutes in West and Central Africa for more that ten years. This survey over the last three years, enabled observations of a tendency for resis...

Quantifying the Organophosphate Resistance of Two Geographically Separate Cotton Aphid Populations by Means of a Polyacrylamide-Gel Electrophoresis (PAGE) Technique
By Muhammad Naveed Arshad on Mar 7, 2019

Crop Protection WCRC WCRC2

ABSTRACT Analysis of isoenzymes of different aphid populations showed differences in molecular densities after the addition of different concentrations of an organophosphate. By adding the insecticide, isoenzyme bands of one population get less dense or disappear, while there were minimal changes in the density of the same bands of another geograp...