In-Season Changes in Resistance to Insecticides in &lt;I&gt;Helicoverpa armigera&lt;/I&gt; (Lepidoptera: Noctuidae) in India

Kranthi, K. R.; Russell, Derek; Wanjari, R. R.; Kherde, Manoj; Munje, Shyamkant S; Lavhe, N.V; Armes, N.J.

doi:10.1603/0022-0493-95.1.134

Cited by 44 publications

(28 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The use of pyrethroids and organo-phosphate insecticides induced outbreaks of the polyphagous bollworm (Helicoverpa armigera (Hübner)), whitefly (Bemisia tabaci (Gennadius)), and other pests [9] that proved more damaging and difficult to control than PBW [8,9]. Prior to the 1970s, when high insecticide use began, bollworm and whitefly were minor pests in Indian cotton, but by 2002, when Bt cotton was introduced, 75 % of insecticide use in cotton was for bollworm control [14]. Insecticide resistance was found in the defoliator S. litura in the late 1980s and in several other pests including pink bollworm and bollworm in the 1990s [14].…”

Section: Cotton Pestsmentioning

confidence: 99%

Deconstructing Indian cotton: weather, yields, and suicides

et al. 2015

View full text Add to dashboard Cite

Background: Cotton with coevolving pests has been grown in India more than 5000 years. Hybrid cotton was introduced in the 1970s with increases in fertilizer and in insecticide use against pink bollworm that caused outbreaks of bollworm. Hybrid Bt cotton, introduced in 2002 to control bollworm and other lepidopteran pests, is grown on more than 90 % of the cotton area. Despite initial declines, year 2013 insecticide use is at 2000 levels, yields plateaued nationally, and farmer suicides increased in some areas. Biological modeling of the pre-1970s cotton/pink bollworm system was used to examine the need for Bt cotton, conditions for its economic viability, and linkage to farmer suicides. Results: Yields in rainfed cotton depend on timing, distribution, and quantity of monsoon rains. Pink bollworm causes damage in irrigated cotton, but not in rainfed cotton unless infested from irrigated fields. Use of Bt cotton seed and insecticide in rainfed cotton is questionable. Conclusions: Bt cotton may be economic in irrigated cotton, whereas costs of Bt seed and insecticide increase the risk of farmer bankruptcy in low-yield rainfed cotton. Inability to use saved seed and inadequate agronomic information trap cotton farmers on biotechnology and insecticide treadmills. Annual suicide rates in rainfed areas are inversely related to farm size and yield, and directly related to increases in Bt cotton adoption (i.e., costs). High-density short-season cottons could increase yields and reduce input costs in irrigated and rainfed cotton. Policy makers need holistic analysis before new technologies are implemented in agricultural development.

show abstract

Section: Cotton Pestsmentioning

confidence: 99%

Deconstructing Indian cotton: weather, yields, and suicides

et al. 2015

View full text Add to dashboard Cite

show abstract

“…For the preservation of diets for few days, they were stored in refrigerator. The recipe of ingredients of different diets is given in Table 2 Bioassay: The bioassays were conducted by topical application using Hamilton micro applicator to evaluate the toxicity of test insecticides (Kranthi et al, 2002). Topical application method: Graded stock solutions through serial dilution technique of the test insecticide were prepared from the technical grade products by dissolving the required quantities after accurate weighing in acetone.…”

Section: Methodsmentioning

confidence: 99%

“…Larvae were held individually in 12-well tissue culture plates containing artiÞcial diet, at 25 ± 2 0 C for 6 d when mortality was recorded. All rearing and bioassay operations were carried out at 25 ± 2°C under a photoperiod of 12:12 (L:D) hours (Kranthi et al, 2002). Maintenance of susceptible strain: H. armigera were collected from pigeonpea field (unsprayed) from different locations and maintained in laboratory for seven generation without exposure to insecticides.…”

Section: Methodsmentioning

confidence: 99%

Toxicological studies on Helicoverpa armigera in pigeonpea growing in Vidarbha region of Maharashtra, India

Salunke

Lande

Wadaskar

2017

JANS

View full text Add to dashboard Cite

90 within range of 6.413 to 18.349 ppm. The resistance level is visibly high in cypermethrin, moderate to indoxacarb, quinalphos, spinosad and low to methomyl; Yavatmal and Washim strains expressed higher resistance level to cypermethrin, quinalphos and methomyl, whereas Yavatmal and Buldhana strains expressed higher resistance level to indoxacarb and spinosad. The investigation will help to track resistence level in Helicoverpa armigera to different groups of insecticides.

show abstract

“…In India, this pest causes an estimate crop loss of US $350 million annually and farmers have to spray 15-20 times. Farmers in Pakistan also rely heavily on the use of chemical to control this pest and this indiscriminate use of insecticide particularly pyrethroids has developed resistance in this pest against insecticides [74,75].…”

Section: Cotton Bollworm (Helicoverpa Armigera)mentioning

confidence: 99%

Transgenic Bt Cotton: Effects on Target and Non-Target Insect Diversity

Arshad¹,

Khan²,

Aslam³

et al. 2018

Past, Present and Future Trends in Cotton Breeding

View full text Add to dashboard Cite

Occurrence of diversity in ecosystem sustains particular characteristic of a biological community and also ensures stability of the community. Transgenic crops may affect insect biodiversity by unintended impacts on non-target arthropod population. For example, transgenic GM cotton specific to target lepidopterous pests can change the cotton pest spectrum and may induce the growth of new harmful pest species having no pest status. The change in species composition may influence IPM approach in cotton crop. The results of authors' research studies as well as global impact indicate that GM cotton is highly specific to target pests and has no unintended impact on non-target insect population. GM cotton provides significant season-long field control of target pests (Helicoverpa armigera, Earias spp. and Pectinophora gossypiella), with no significant control of Spodoptera species. The decreased insecticide use in GM cotton has a positive impact on beneficial insect populations and can increase the stability of rare species. Bt cotton has no resistance against non-target sucking insect pests. As GM cotton has no adverse effects on the non-target insect population and can reduce the use of broad-spectrum insecticides, it can become an important tool of IPM program in cotton agro-ecosystem of Pakistan.

show abstract

In-Season Changes in Resistance to Insecticides in <I>Helicoverpa armigera</I> (Lepidoptera: Noctuidae) in India

Cited by 44 publications

References 9 publications

Deconstructing Indian cotton: weather, yields, and suicides

Deconstructing Indian cotton: weather, yields, and suicides

Toxicological studies on Helicoverpa armigera in pigeonpea growing in Vidarbha region of Maharashtra, India

Transgenic Bt Cotton: Effects on Target and Non-Target Insect Diversity

Contact Info

Product

Resources

About