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...

Efficacy and Impact of Some Insecticides Used to Control Aphids, Aphis gossypii Glover (Homopters: Aphididae) on Cotton in Uganda, on Predators
By Muhammad Naveed Arshad on Mar 7, 2019

Crop Protection WCRC WCRC2

ABSTRACT Representatives of the main insecticide groups currently being used by farmers for the control of the cotton aphid, Aphis gossypii Glover were evaluated . The four insecticides tested were carbosulfan 35 STD (Marshall), cypermethrin 5% E.C. (Ambush), dimethoate 222g/L + chlorpyrifos 278g/L E.C (Salut) and Monocrotophos (Azodrin E.C.). The...

Management of Insecticide Resistant Helicoverpa armigera (Lepidoptera: Noctuidae) in Cotton in India
By Muhammad Naveed Arshad on Mar 7, 2019

Uncategorized

ABSTRACT Helicoverpa armigera (Hübner) was responsible for some $500 million of damage in India in the 1997-8. Insecticide resistance levels have been monitored routinely at sites throughout the country since 1992 using discriminating dose assays. Resistance to pyrethroids is ubiquitous and stable at around 50-80% in most areas. Organophosphate an...

Mechanism of Resistance in Wild Gossypium species to Helicoverpa armigera (Hübner)
By Muhammad Naveed Arshad on Mar 7, 2019

Crop Protection WCRC WCRC2

ABSTRACT Eight wild species of Gossypium were evaluated to determine the mechanism of resistance to Helicoverpa armigera (Hübner). Wild species, viz. Gossypium anomalum, G. raimondii, G. harknessii, G. arboreum, G. palmari, G. davidsonii, G. armourianum and G. stocksii and the susceptible control MCU 9 and TCHB 213 were included in the study. Ovip...

Effect of Leaf Cuticular Wax Extract of Wild Gossypium spp. on Behaviour of Helicoverpa armigera (Hübner)
By Muhammad Naveed Arshad on Mar 7, 2019

Crop Protection WCRC WCRC2

ABSTRACT Cuticular wax extracts were obtained in hexane from eight wild species of Gossypium and sprayed on G. hirsutum var. MCU 9 plants that are susceptible to attacks of Helicoverpa armigera (Hübner). The extracts adversely affected oviposition and feeding and was highly toxic to neonate larvae of H. armigera. Helicoverpa moths laid fewer eggs...

Insecticide Resistance Mechanisms in Indian Helicoverpa armigera
By Muhammad Naveed Arshad on Mar 7, 2019

Crop Protection WCRC WCRC2

ABSTRACT The cotton bollworm Helicoverpa armigera (Hübner), has developed resistance to almost all groups of insecticides used for its management in India. Studies using biochemical assays and synergists over the past five years on laboratory and field populations indicate that Helicoverpa displays a range of enzymes/isozymes, some of which are un...

The population dynamics of Aphis gossypii Glover (Homoptera: Aphididae) on cotton, in Greece
By Muhammad Naveed Arshad on Mar 7, 2019

Crop Protection WCRC WCRC2

ABSTRACT The population dynamics of Aphis gossypii Glover (Homoptera: Aphididae) on cotton was studied in Greece (region of Magnesia) during the 1992-1997 seasons. The experimental cotton fields (1-2 per year) were kept free from insecticidal treatments during the course of the study. In all cases, the aphid population increased soon after crop es...

Efficacy of Bt Cotton Plants in Australia: What is Going On?
By Muhammad Naveed Arshad on Mar 7, 2019

Crop Protection WCRC WCRC2

ABSTRACT We report on the patterns and causes of variable efficacy of Bt cotton plants for control of Helicoverpa spp. in Australia. Initially, it was hoped that these plants would be efficacious against their target pests throughout the cotton growing cycle. Spatial and temporal changes in efficacy have been followed in field plots of cotton usin...

Analysis of Pyrethroid Resistance in Helicoverpa armigera in Pakistan
By Muhammad Naveed Arshad on Mar 7, 2019

Crop Protection WCRC WCRC2

ABSTRACT Resistance to seven pyrethroids was regularly monitored in field populations of Helicoverpa armigera in Pakistan during 1991 to 1997 using an IRAC leaf-dip method. From 1991 to 1993, resistance was moderate to cypermethrin and cyfluthrin, low to alphacypermethrin, zetacypermethrin and deltamethrin, and very low to lambdacyhalothrin and bi...