Lethal and parasitism effects of selected novel pesticides on adult Trichogramma chilonis (Hymenoptera: Trichogrammatidae)

Khan, Muhammad Ashraf

doi:10.1007/s41348-019-00280-2

Cited by 23 publications

(23 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…XX, No. XX Gelechiidae), and Khan et al (2015) reported that it was highly toxic to the same species. Hussain et al (2010) found that abamectin and emamectin benzoate were harmful to T. chilonis adults after 24 h of exposure.…”

Section: Discussionmentioning

confidence: 99%

“…A combination of biological and chemical control approaches is very important for a successful integrated pest management (IPM) programs (Musser et al 2006, Ghorbani et al 2016. IPM programs use a combination of strategies, such as chemical, biological, and mechanical control, to maintain pest populations below economic thresholds (Roubos et al 2014, Khan et al 2015. The use of pesticides that are effective against target pests but have little or no negative effects on their natural enemies are desirable (Bastos et al 2006, Preetha et al 2010.…”

mentioning

confidence: 99%

“…Several studies have shown that Trichogramma spp. are very vulnerable to a large variety of pesticides (Hassan et al 1998, Vieira et al 2001, Khan et al 2015.…”

mentioning

confidence: 99%

See 2 more Smart Citations

Lethal and Sublethal Effects of Various Pesticides on Trichogramma achaeae (Hymenoptera: Trichogrammatidae)

Fontes

Roja

Tavares

et al. 2018

Journal of Economic Entomology

View full text Add to dashboard Cite

Little information is available regarding the lethal and sublethal effects of pesticides on Trichogramma achaeae (Nagaraja and Nagarkatti; Hymenoptera: Tricogrammatidae) during integrated management of Tuta absoluta (Meyrick; Lepidoptera: Gelechiidae), an important pest for tomato production. Twenty-two pesticides sprayed on Ephestia kuehniella (Zeller; Lepidoptera: Pyralidae) eggs were evaluated on the mortality of adult parasitoids upon contact with the hosts 24 h after the treatments and their sublethal effects on the parasitoids were assessed in laboratory conditions. Tests were carried out with fresh solutions at the recommended concentration. According to the International Organisation for Biological and Integrated Control (IOBC) standards, chlorpyrifos is harmful to the parasitoid; merthiocarb, methomyl, spinosad lambda-cyhalothrin, and acrinatrin are moderately harmful; and chlorantraniliprole, lufenuron, hexythiazox, cyromazine and Bacillus thuringiensis have no effect on the parasitoid. Sulfur is slightly harmful, and azoxystrobin is harmless. Chlorpyrifos was the most lethal among these pesticides and killed all females in less than 24 h. All other pesticides affected the biological parameters of T. achaeae to varying degrees. Regarding the lethal and sublethal effects, merthiocarb and spinosad killed all female offspring in less than 24 h; lambda-cyhalothrin and sulfur reduced the number of parasitized eggs; and acrinatrin, deltamethrin and azoxystrobin affected the emergence rate. After that, we can recommend the use of chlorantraniliprole and B. thuringiensis to control Lepidoptera, cyromazine to control Diptera, pirimicarb to control Homoptera, hexythiazox to control mites and azoxystrobin can be used as fungicide in an integrated pest management program with mass released of T. achaeae.

show abstract

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

See 1 more Smart Citation

Lethal and Sublethal Effects of Various Pesticides on Trichogramma achaeae (Hymenoptera: Trichogrammatidae)

Fontes

Roja

Tavares

et al. 2018

Journal of Economic Entomology

View full text Add to dashboard Cite

show abstract

“…However, none of the commercially available GM cotton cultivars are fully effective against the CBW, which urgently needs to be controlled via new cultivars or new methods. Genetic silencing via RNAi is a potential tool for controlling the CBW (Macedo et al 2017), and Trichogramma chilonis (Hymenoptera: Trichogrammatidae) is a good choice for controlling pests in cotton fields (Khan 2019). In addition, ratoon cultivation is prone to productivity decline each year due to negative plant-soil feedback, which may involve complex physical, chemical, and biological effects mainly caused by the following aspects: (1) roots of ratoon plants perennially absorb minerals from deep soil, which are difficult to replenish by fertilization, leading to the gradual depletion of nutrients; (2) perennial accumulation of soil pathogens and underground pests can cause significant damage to plants; and (3) root exudates (such as phenols) that accumulate over the years can alter the physical and chemical properties of rhizosphere soil, which is detrimental to the continued growth of plants (Bonanomi et al 2005;Liu et al 2008;Huang et al 2013;Vukicevich et al 2016).…”

Section: Solving the Problems Associated With The Cultivation Of Ratomentioning

confidence: 99%

Harnessing perennial and indeterminant growth habits for ratoon cotton ( Gossypium spp.) cropping

Zhang

Kong

Zhou

et al. 2020

Ecosyst Health Sustain

View full text Add to dashboard Cite

Ratoon is the stub or root of a perennial plant that is commonly retained after harvest to produce a following crop. This paper presents a review of ratoon cotton in relation to a broader framework that has been examining perennialization of agriculture for the benefit of ecology and economy. Cotton is botanically indeterminate, but has been treated as an annual after domestication, yet the habit of perenniality is retained and the plants begin to resprout after the first harvest. In some cropping systems, this tendency is exploited using the "ratooning" practice (i.e. growing one or more crops on the rootstock of the first). Ratooning has declined for various reasons such as an increase in the prevalence of pests and diseases and overwintering risk. However, ratooning has many benefits such as no annual tillage before sowing, a well-established root system, and high yield. The three methods of ratooning offer flexibility to balance the environmental and economic benefits in agriculture. The greatest environmental benefits arise from perennial ratoon cropping of semi-wild cotton, and the greatest economic benefit is obtained from biannually cropping modern annual cultivars. However, an optimum solution would be provided by perennial cropping annual cultivars. To realize both environmental and economic benefits, research is needed in the following main areas: preventing the buildup of pests and diseases, breeding the most suitable cotton cultivars for ratooning, and developing light and simplified cultivation (LSC) systems for ratoon cultivation.

show abstract

“…Herbicides, after direct or indirect contact, can penetrate the cuticle or tegument and reduce parasitism and other biological activities of Trichogramma [18,19,20]. The effects of herbicides on Trichogrammatidae vary with the concentration, type of salt and adjuvants in its mixture [21,22].…”

Section: Introductionmentioning

confidence: 99%

High Tolerance of Trichogramma Pretiosum (Hymenoptera: Trichogrammatidae) to the Mixture of the Herbicides Nicosulfuron Plus Atrazine

Leite¹,

Cordeiro²,

Santos³

et al. 2020

Preprint

View full text Add to dashboard Cite

Background: Maize, Zea mays (Poaceae), is one of the most important crops in the world, but defoliating caterpillars (Lepidoptera) and weeds can reduce the productivity of this plant. The control of weeds in the maize crop in Brazil is mainly accomplished with nicosulfuron- and atrazine-based herbicides, and of lepidopteran pest eggs with use of several species of Trichogrammatidae (Hymenoptera) parasitoids released. The objective of this study was to evaluate the rates of parasitism and emergence of females and the sex ratio (%) of 10 Trichogrammatidae species, in a free-choice test, submitted to a mixture of the herbicides Sanson 40 SC® (a.i. nicosulfuron; dose: 30 g.ha–1) + Gesaprim 500 Ciba-Geigy® (a.i. atrazine; dose: 1500 g.ha–1) in the laboratory.Results: The parasitism rate (%) of Trichogramma acacioi Brun, Moraes & Soares, Trichogrammatoidea annulata de Santis, Trichogramma atopovirilia Oatman & Platner, Trichogramma bennetti Nagaraja & Nagarkatti, Trichogramma brunni Nagaraja, Trichogramma brasiliensis Ashmead, Trichogramma demoraesi Nagaraja, Trichogramma galloi Zucchi, and Trichogramma soaresi Nagaraja was lower with the herbicide mixture of nicosulfuron + atrazine than the control and, therefore, this mixture was considered to be slightly harmful (i.e., class II of the International Organization for Biological and Integrated Control) to these parasitoids. This solution reduced the emergence rate (%) of female T. acacioi, T. annulata, T. atopovirilia, T. bruni, T. brasiliensis, T. demoraesi, T. galloi, and T. soaresi, being classified as harmless to T. soaresi, moderately harmful to T. galloi and slightly harmful to the other species. The herbicide mixture of nicosulfuron + atrazine reduced the sex ratio of T. acacioi, T. atopovirilia, T. bruni, T. demoraesi, T. galloi, and T. soaresi, being classified as harmless to T. annulata and T. brasiliensis, and slightly harmful to the other species.Conclusions: The biological parameters (i.e., rates of parasitism and emergence and the sex ratio) of T. pretiosum, followed by T. bennetti, T. annulata and T. brasiliensis were the least affected by the herbicide mixture. These species should be chosen for release, on pieces of paperboard with parasitized E. kuehniella eggs, in crops together with the application of nicosulfuron + atrazine.

show abstract

Lethal and parasitism effects of selected novel pesticides on adult Trichogramma chilonis (Hymenoptera: Trichogrammatidae)

Cited by 23 publications

References 38 publications

Lethal and Sublethal Effects of Various Pesticides on Trichogramma achaeae (Hymenoptera: Trichogrammatidae)

Lethal and Sublethal Effects of Various Pesticides on Trichogramma achaeae (Hymenoptera: Trichogrammatidae)

Harnessing perennial and indeterminant growth habits for ratoon cotton ( Gossypium spp.) cropping

High Tolerance of Trichogramma Pretiosum (Hymenoptera: Trichogrammatidae) to the Mixture of the Herbicides Nicosulfuron Plus Atrazine

Contact Info

Product

Resources

About