Presence of silica in plant body shoot fly resistance in sorghum damage to mandibles. Nagpur 440 010 maharashtra scientist ic, tmcmm i cell central institute for cotton research nagpur. So, plant leaves become wrinkled and this is the symptom of jassid infestation 5. First transgenic trait for control of plant bugs and thrips in cotton.
Younger leaves may show a yellow margin and reddened patches. Seasonal incidence of sucking pests and their natural. Notes on taxonomy and nomenclature top of page the taxonomic situation is complicated and presents several problems. Agromet advisory services for different states of the. The most consistent insectrelated challenge for kansas cotton grow ers is thrips. Jassids, insecticides, enzyme activity, protection of cotton, cote. Besides of the cotton bollworms, sucking insect pests, cotton aphid, whitefly, and jassid attack cotton plants at different growing stages and cause serious damage in cotton leaves. Life cycle and control of pectinophore gossypiella. Thrips damage is most evident during cool, wet periods when seedling cotton plants grow slowly. Cotton is attacked by more than 160 species of insects of these a dozen are major pests. Besides cotton it also feeds on okra, potato, brinjal and some wild plants. Diversity and abundance of insects in cotton crop land of.
The amount of insectpests, which damage the cotton crop from sowing to maturity, plays a significant role in yield loss. Central institute for cotton research nagpur central institute for cotton research r. A heavy black sooty mould may develop on the honeydew like droplets secreted by mealy bugs. Pdf comparative efficacy of novel pesticides against jassid. For the control of boll worms spray the crops with 2. Mills are reluctant to buy and may reject contaminated lint. Pakistan entomologist diet predilection of jassid on. It was grown on 509 thousand hectares in 2004 2005. Jassid attack during reproductive crop growth can be.
Research article management of mango hopper, idioscopus. Reddening of leaf lamina from margin hopper burn, stunted plant growth amrasca biguttula biguttula. Wheat stem borer sesamia inferens with its systematics position, habits, nature of damage caused. Incidence of spotted bollworm is reported in cotton. Studies on jassid resistance in relation to hairiness of cotton leaves. The present production of cotton is lower than the targeted production due to insect pest with considerably damage the quality and reduced the yield of cotton 11. Control of helicoverpa on cotton, pigeonpea, and tomato by bacillus thuringiensis, 4. Integrated pest management ipm programand awareness.
The annual publication covering all aspects of best practice production. In november 2008 all patients were sent a standardized, validated questionnaire on urogenital symptoms and quality of life after the operation to fill in at home and were invited to. The nymph of jassid prefer okra crop for the survival and feeding sharma and singh, 2002 causes damage from seedlings to the fruit setting stage, and resulting loss up to 5063. Whereas, the pest status of all other insect and mite pests were minor and caused damage with low infestation intensity. Morphological and biochemical bt cotton plant trait induced resistance against cotton jassid amrasca biguttula biguttula ishida and cotton whitefly bemisia tabaci genn.
In india the pest was recorded over 80 plant species of which heavy population buildup and severe damage was noticed in several species including economically important crops. Determination of economic threshold level etl of jassid. The average lint yield for the state as a whole was 697 kg per hectare. Adults and nymphs suck sap from undersurface of leaves and toxic effects of the saliva they inject when feeding on the leaves. After spraying cotton growth regulator, two plants from. Uc management guidelines for cotton aphid on cotton. In fact, there has been an increase in damage to plants caused by jassids throughout the cotton production area of. To study the degree of jassid resistance versus hairiness of leaves and to know the. Nymphs and adults of mealy bugs suck sap from the leaves, tender shoots, and the fruits. Effects of cotton growth regulator on jassid infestation. In cotton it can cause yield loss greater than 100114 kg of lint per hectare sukhija et al.
Low yield of cotton university of agriculture faisalabad. Chief executive, punjab agriculture research board, lahore member secretary the tors of the committee are as follows. The conventional systemic insecticides should be alternated if more than one spray of systemic insecticides is to be sprayed. Among sucking insects causing critical damage to cotton and 4050% reduction in yield include aphis gossypi, bemisia tabaci, thrips tabaci and amrasca. The comprehensive annual describing all practices for best practice stewardship of gm technologies. These findings confirm the results of present study. The effects of thrips injury to seedling cotton plants was visually rated. Pakchong, nakon ratchasima to investigate the damage of gamma irradiated cotton populations caused by the cotton leafhopper amrasca bigutulla bigutulla using hopperburn index. Cotton jassid, rice stem borer iii minor pestoccasional pest gep is below the eil usually rarely they cross eil can be controlled by spraying e. Rai crop protection division, indian institute of vegetable research varanasi. A survey of whitefly populations and its parasitism with connection to temperature and relative humidity was conducted in fourteen cotton growing districts of sindh province southern pakistan for 2012 and 20 seasons. For all other uses or more information, read legal notices. The surplus cotton is exported to provide a raw material in textile industries.
In egypt, jassid infestation was insignificant, however, few years ago it has become a serious pest. Large numbers of jassids can cause leaf damage especially lower in the canopy. Cotton belt between 1892 and 1920, and even though cotton breed ing was just beginning during that period it was recognized that earliness an important factor in escaping boll weevil damage. Pests and beneficials in australian cotton landscapes 5 damage. Icarcentral institute for cotton research cicr former director icarcicr and head, technical information section, icac email. Of which, brinjal shoot and fruit borer caused damage eggplants with high infestation intensity. Yellowing of leaves, crinkling and curling of leaves. Effects of cotton growth regulator on jassid infestation and. Heavy infestation with this sucking insect causes extensive. Since, the pest is more serious in the early stage of crop in. Spatial field survey of cotton whitefly and its pupal.
Biopesticides are very effective in the agricultural pest. This pest mainly found on lower side of plant leaves, sucks sap from lower side portion substance into the plant tissues. Pdf comparative efficacy of novel pesticides against. Damage to cotton is most common during the seedling stage because small plants are more susceptible to injury.
Integrated pest management of cotton in punjab, india. Varietal resistance of bt cotton against sucking complex. Cotton aphids are the primary aphid species of concern in cotton. Rai crop protection division, indian institute of vegetable research. For noncommercial purposes only, any web site may link directly to this page. Inscalis insecticide has been shown to reduce the primary and secondary spread of insect pestvectored viruses by causing rapid feeding cessation that leads to impairment and death of the insect pest. Severe aphid damage results in wrinkling, stunting and cupping of leaves. Activity of insecticide detoxification enzymes in cotton jassids. Plot unit was consisted of one twometercottonrow with 0. Preliminary observation on m 1 populations of cotton varieties, sr 2, r1, ap 1 and ap 2. Several resistant cultivars were developed rapidly. Whitefly, pink bollworm, armyworm and jassid were the most damaging insect pests. Statistical analysis for est ssr data was conducted using software programme ntsys pc version 2. The preoperative prolapse was described in the patients files using the baden and walker system.
Preliminary observation on m 1 populations of cotton varieties, sr 2, r1, ap 1 and ap 2, was administered in the year 2000. They compete with young growth and developing fruit and reduce photosynthesis resulting in. Neem extract was found more e ective against jassid, white y, and thrips on cotton as compared to perfekthion which lost its e cacy a er days, while neem product was persis. The main aspect of this problem is the due to damage of crops that leads to loss of production and this also affects the health of humans. However, unlike cowpea aphids, cotton aphids are not shiny and can occur anytime during the growing season. Spraying against these pests was not admissible in the rainy period of 2015. Cotton jassid is the notorious sucking insect pest of cotton 3, 4. Sprays should be undertaken when the population of nymphs is more along with the second grade injury to the crop.
Pdf morphological and biochemical bt cotton plant trait. Cotton bollworm, diamond backmoth ii major pest gep lies very close to eil or coincides with eil economic damage can be prevented by timely and repeated sprays e. Although size and color can differ based on environmental conditions, adult aphids tend. Mf2674 cotton insect management 2019 ksre bookstore. Mon 88702 also had fewer thrips and minimal injury. Control of white fly on cotton by neem products, 5. Dense thick leaves it is more of mechanical obstruction. This use of in creased earliness represented an indirect approach to insect resist ance in cotton. Similarly, the spotted bollworm species appeared on cotton in 3rd week of june on fruiting bodies and continued up to crop harvest. The dramatic uptake of this technology presumably resulted in strong selection pressure for resistance in helicoverpa spp.
Field efficacy of various insecticides against major. Maximum activity on cotton remained during june and july with maximum mean of 2. Unfortunately, we cannot provide individual solutions to specific pest problems. The pests have the potential to reduce yield by 20 to 80 per cent 6.
Pdf on dec 15, 2016, hakim ali sahito and others published comparative efficacy of novel pesticides against jassid, amrasca biguttula biguttula ishida on cotton crop under field conditions at. Crop damage can be contributed to direct pest feeding injury or to the spread of vectorborne plant diseases. The most consistent insect related challenge for kansas cotton grow ers is thrips. Inscalis insecticide worldwide technical information brochure 3 biological profile mode of action inscalis insecticide is a novel member of a group of insecticides known as chordotonal organ trpv channel modulators and has been classified by the insecticide resistance action committee irac as the only member of the new mode of action subgroup 9d. Few of them are considered as key pests causing huge damage to cotton crop all over the country. Observation of gamma irradiated cotton populations on. Observation of gamma irradiated cotton populations on trend. Punjab state cotton is an important kharif crop of the punjab state. Sumialpha flex will also give suppression of southern and common armyworm.
Both immature and adult stages causes huge loss by feeding on under sides of leaves and sucks the sap from leaves. Pestspesticides integrated pest management gmml ipm. The jassid appeared at the age of 2431 dap in third week of may and continued upto crop harvest. Cicadellidae cotton jassid is the most destructive sucking pest of american cotton in the north zone and is present throughout the country. Adults are greenish yellow wedge shaped with a pair of black spot on the vertex and. The genetic distance gd among the all genotypes of cotton were also analyzed and it is ranged from 0. The combined losses due to leafhoppers and whitefly on sunflower is estimated to be 9. Though,pestcides are developed to control this but they have created serious ecological problems. Pestspesticides integrated pest management gmml ipm in.
Leaves show characteristic curling symptoms similar to that of a virus. Director, central cotton research institute, multan member 6. Cloudy weather favours the population build up and heavy showers wash off the populations. Bambawale abstract studies were taken up to monitor the population of sucking pests as well as boll damage in commercially released. Plot unit was consisted of one twometer cotton row with 0.
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