Seasonal incidence of major insect-pests of soybean and their correlation with abiotic factors

Gaur, Neeta; Sharma, Preeti; Nautiyal, Anchala

doi:10.5958/2230-7338.2015.00007.5

Cited by 11 publications

(9 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…temperature although a negative correlation was The tobacco caterpillar incidence was mainly influenced by minimum temperature which recorded seen with sunshine. Besides, Gaur et al(2015) also observed positive correlation of Spodoptera with max.temperature. In the present studies, a negative correlation was found with morning RH, evening RH and rainfall though they were non significant.…”

Section: Defoliatorsmentioning

confidence: 66%

“…Neetam et al, (2013) also found the peak activity of S.litura in the last week of August with 5.0 larvae per meter row. Gaur et al (2015) also reported that all the weather parameters were non significantly related to the incidence of S.litura and O.brevis. However, Matti and Deoptale (2017) recorded positive correlation of tobacco caterpillar incidence with max.…”

Section: Defoliatorsmentioning

confidence: 98%

“…The correlation coefficient studies carried out between green semilooper and weather parameters revealed the positive and highly significant effect of evening relative humidity (0.729**), evaporation (0.684**) rainfall (0.661**) and rainy days (0.537*) on semilooper population during Kharif, 2014 while during 2015 Kharif, season the semilooper population showed significant and positive relationship with evening relative humidity (0.570*), while the other weather parameters had no influence on the population buildup of green semiloopers. Gaur et al (2015) and Ahirwar (2010) reported negative correlation of semilooper population with max. temperature and sunshine.…”

Section: Green Semi Looper (C Acuta)mentioning

confidence: 98%

See 2 more Smart Citations

Population dynamics of stem fly and defoliator pests of soybean and their natural enemies in relation to weather parameters

Naik¹,

Lakshmi²,

Venkataiah³

et al. 2021

IJAS

View full text Add to dashboard Cite

The field experiment was carried out at Polasa Farm, Regional agricultural research station Jagtial during the Kharif, 2014-15 and 2015-16. Study about pre dominant lepidopteran insect –pests in soybean crop noticed that the tobacco cut worm, (Spodptera exigua Hubner), green semi looper(Crysodexis acuta Walker), and tobacco caterpillar (Spodoptera litura Fab) along with stemfly, (Melanagromyza obtusa Zehnter) as non lepidopteran pest were noticed at various growth stages of cropgrowth. The peak activity of stem fly (37.84%) was observed during 37th standard week per meter row) for the year 2014 and for the year 2015 to a maximum infestation of 35.70 per cent during 30th std.week. The peak activity of caterpillar pests i.e., S. litura (7.6 larvae per meter row) for the year 2014 was observed during 34th std.week and for the year 2015 (12.4 per meter row during 36th std.week and C. acuta (0.7 larvae per meter row) during 36th std. week for the year 2014 and for the year 2015 (2.20 larvae/mrl on 37th std week. S. exigua (1.6 larvae per meter row) for both the years 2014 and 2015 was observed during 32th std.week Among the natural enemies, one predators namely, spiders (Oxyopes sp. was observed to prey on the insect pests.The biocontrol agent’s one species, lynx spider, Oxyopes sp. population recorded on the crop during Kharif , 2014 ranged from 0.15 to 0.40 /mrl and 0.15 to 0.60/ mrl during Kharif, 2015.

show abstract

Section: Defoliatorsmentioning

confidence: 66%

Section: Defoliatorsmentioning

confidence: 98%

Section: Green Semi Looper (C Acuta)mentioning

confidence: 98%

See 1 more Smart Citation

Population dynamics of stem fly and defoliator pests of soybean and their natural enemies in relation to weather parameters

Naik¹,

Lakshmi²,

Venkataiah³

et al. 2021

IJAS

View full text Add to dashboard Cite

show abstract

“…Two species of hymenopteran parasitoids from two families, namely Eurytomidae (Eurytoma melanagromyza Narendran) and Pteromalidae (Chlorocytus sp.) with an average parasitism of 12.50% and 11.14%, respectively, were the most prevalent parasitoid species throughout the season (Gaur et al 2015).…”

Section: Stem Flymentioning

confidence: 99%

The Role of Natural Enemies and Biopesticides for Sustainable Management of Major Insect Pests of Legumes

Kota¹,

Kukanur²,

Sree³

et al. 2021

Biopesticides in Organic Farming

View full text Add to dashboard Cite

show abstract

“…Biological control could be significant in managing of this dangerous insect pest (Naik et al 2013;Gaur et al 2015;Arnemann et al 2016a,b). Generally, the management strategies result in early sowing dates.…”

Section: Introductionmentioning

confidence: 99%

Population Status of Biological Control Agent: Sphegigaster spp (SPINO.) (Hymenoptera, Pteromalidae) as a Parasitoid on Soybean Stem Fly Melanagromyza sojae (ZEHNT.) (Diptera, Agromyzidae) in the Nubaria Region of Egypt

Alfy

El-Sabrout

Bressac

2019

Alexandria Science Exchange Journal

View full text Add to dashboard Cite

The soybean stem fly (SSF), Melanagromyza sojae (Zehntner) (Diptera: Agromyzidae), is highly polyphagous and attacks various host plant species in the family Fabaceae, such as soybean and other beans. A field survey was conducted during the 2016 and 2017 seasons at the Nubaria Agriculture Research Station, Egypt, to follow populations of the SSF on soybean cultures. The parasitoid Sphegigaster spp was identified and recorded for the first time as a solitary parasitoid on SSF pupa. The parasitoid's morphology was studied by using The scanning electron observations of the morphology confirms the genus of the parasitoid. The insect injurious stage of SSF on soybean plantations was larva that feeds inside the plant stem then convert to pupa during Jun.-Sept. (2016-2017). The level of SSF infestation was severe compared with insect pests orders Hemiptera and Lepidoptera. The infested plants by M. sojae and the level of parasitism (non-parasitized and parasitized SSF pupae) were estimated during 2016 and 2017 seasons. The results indicate that the exit hole of M. sojae is associated with the entry of the parasitoid into a pupa. The Parasitism percentages on SSF pupae by Sphegigaster parasitoid increased gradually up to 38.7% in August 2016, while it is 34.3% in August 2017. In September 2016 and 2017, respectively and then started to decrease in September where it was 16.7%, 22.2% in two successive seasons. Finally, the average of parasitism percentages on SSF pupae by their parasitoids Sphegigaster spp was 23.4% in 2016, while it is 26.7% in 2017. The Sphegigaster spp sex ratios were male biased, being respectively 52% (14 females and 15 males) in 2016 and 62% (12 females and 20 males) in 2017. The result point to the first record of the parasitoid Sphegigaster spp in Egypt on SSF pupae offers a promising opportunity for a biocontrol of soybean stem fly under local agronomic and climate conditions. Therefore, the presence of the parasitoids of M. sojae in Egypt was useful for the development of biocontrol methods to limit its impact on regional soybean production.

show abstract

Seasonal incidence of major insect-pests of soybean and their correlation with abiotic factors

Cited by 11 publications

References 0 publications

Population dynamics of stem fly and defoliator pests of soybean and their natural enemies in relation to weather parameters

Population dynamics of stem fly and defoliator pests of soybean and their natural enemies in relation to weather parameters

The Role of Natural Enemies and Biopesticides for Sustainable Management of Major Insect Pests of Legumes

Population Status of Biological Control Agent: Sphegigaster spp (SPINO.) (Hymenoptera, Pteromalidae) as a Parasitoid on Soybean Stem Fly Melanagromyza sojae (ZEHNT.) (Diptera, Agromyzidae) in the Nubaria Region of Egypt

Contact Info

Product

Resources

About