Morphological and chemical characteristics of tomato foliage as mechanisms of resistance to Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) larvae

Field experiments were carried out to investigate the seasonal abundance and population dynamics of certain tomato pests viz.; tomato whitefly, Bemisia tabaci (Gennadius), aphids (cotton aphid, Aphis gossypii Glover and green peach aphid, Myzus persicae Sülzer), potato leafhopper, Empoasca decipiens Paoli and tomato leafminer, Tuta absoluta (Meyrick) and evaluate the susceptibility of two tomato cultivars (Hybrid Super Strain BF1 and Super Crystal HYB) to the infestation with these pests as a major component of the integrated pest management in clean and organic agriculture that rationalize the unwise use of pesticides and accordingly producing safe food. Obtained results revealed that B. tabaci had 2-3 peaks of abundance during summer seasons 2012 & 2013 on both cultivars. Aphids and E. decipiens had 1-2 peaks each season. On the other hand, T. absoluta had only one peak during both seasons. Data also revealed the presence of negative and highly significant correlation between the population densities of all investigated pests and the numbers of non-glandular hairs on tomato leaves. The effect of nitrogen and calcium on all investigated pests was positive and highly significant; while the effect of potassium was negative and highly significant. The effect of phosphorus was positive and highly significant on all sap sucking pests on the cultivar Crystal HYB; while magnesium had positive and highly significant effect on the investigated pests on the cultivar Hybrid Super. The effect of iron, zinc and manganese was positive and highly significant and cupper was negatively affected these pests on both cultivars.

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Morphological and chemical characteristics of tomato foliage as mechanisms of resistance to Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) larvae

Abstract: Morphological characters and chemical composition of tomato (Lycopersicon esculentum Miller) leaves were measured and compared among nine tomato varieties (Roma VFN,

Cited by 4 publications

References 27 publications

Influence of shifting thermal regimes on tomato fruit borer, Helicoverpa armigera (Hubner) in the Eastern Himalaya: implications for pest management strategies

Influence of shifting thermal regimes on tomato fruit borer, Helicoverpa armigera (Hubner) in the Eastern Himalaya: implications for pest management strategies

Host Plant Preference of Sucking Pest to Different Tomato Genotypes under West Bengal Conditions

An Evaluation of Two Tomato Cultivars to Infestation by Certain Insect Pests

Contact Info

Product

Resources

About