Seasonal abundance of the most important insect pests of maize and their natural enemies in Egypt

Mahmoud, H.; El-Rahman, Soheir F. Abd; Mahbob, M.; Ahmed, Sayeda S.

doi:10.5604/01.3001.0014.8151

Cited by 2 publications

(1 citation statement)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Insect pests of maize that was influence the size and the quality of the yield. The most important of these insects, the maize aphids and thrips (Obrist et al, 2005;Khan et al, 2006;Kucharczyk et al, 2011;Nelson et al, 2011 andMahmoud et al 2021).…”

Section: Introductionmentioning

confidence: 99%

Influence of Fertilization and Plant Density on Population of some Maize Insect Pests and Yield

Naroz

Mahmoud

El-Rahman

2021

Journal of Plant Protection and Pathology

View full text Add to dashboard Cite

Maize considered one of most important cereals in Egypt that used in consumed directly by humans. It is attacking by different insect pests and most important of these insects, aphids, thrips and corn borer that was influence yield size and quality. Field experiments were planted in early June 2019-2020 seasons at Assiut Governorate. Current study, effects of three fertilizers systems (synthetic, organic and mixture between synthetic and organic fertilizers) and three planting densities (5, 10 and 15 plant/Linear meter) on the population of insects and yield were investigated. Results indicated that mixture fertilizers had lowest mean number and infestation percentage of three tested insects at two seasons. Infestation% was higher in 1 st than 2 nd season. Mean numbers of thrips at mixture fertilizers were a highly significant than both synthetic and organic fertilizers. Addition that, highest yield of maize was recorded in mixture fertilizer at the two seasons (3783 and 3948 kg/feddan, respectively). Results showed that, mean numbers of three insect pests were increased with increasing plant density/Linear meter at the two seasons. Thrips population and aphids were significantly differences in three plant densities (5, 10 and 15 plants/Linear meter) at the two seasons. The highest yield of maize in medium plant density (10 plant/Linear meter) recorded 3655 and 3768 kg/fed., at 2019-2020 season respectively. It is concluded that mixture fertilizer and plant density was 10 plants/Linear meter recorded lowest population of three tested insects and high yield of maize at the two successive seasons.

show abstract

Section: Introductionmentioning

confidence: 99%

Influence of Fertilization and Plant Density on Population of some Maize Insect Pests and Yield

Naroz

Mahmoud

El-Rahman

2021

Journal of Plant Protection and Pathology

View full text Add to dashboard Cite

show abstract

Effect of sowing dates on the populations of three major insect pests and associated natural enemies throughout the growth stages of maize plants

Mahmoud

El-Rahman

Naroz

et al. 2021

Polish Journal of Entomology

View full text Add to dashboard Cite

In Egypt, maize is an important crop that is attacked by various pests. In the present study, the effect of maize planting dates on the populations of insect pests and their natural enemies were investigated throughout the growth stages of maize plants. The maize planting dates were at the beginning of May, Jun, and July in the 2019 season and were repeated in the 2020 season. Samples were collected weekly to determine the populations of the insect pests, Limothrips cerealium (Haliday, 1836), Rhopalosiphum maidis (Fitch, 1856), and Sesamia cretica Lederer, 1857 and their natural predators. For the first sowing date, the infestation percentage of L. cerealium and S. cretica were most substantial, especially in the seedling and precorn formation stages. For the third sowing date, the number of R. maidis was most substantial, especially in the corn formation stage. Three predators were associated with these insect species; of these predators, Coccinella undecimpunctata (Linnaeus, 1758), Scymnus interruptus (Goeze, 1777), and Chrysoperla carnea (Stephens, 1836) were observed at the highest numbers during all sowing dates. A highly significant correlation existed between populations of S. interruptus and the three insects across the two seasons. Data suggest that the percentage of thrips, aphids, and stem borers infestations can be minimized by planting maize varieties in June.

show abstract

Seasonal abundance of the most important insect pests of maize and their natural enemies in Egypt

Cited by 2 publications

References 6 publications

Influence of Fertilization and Plant Density on Population of some Maize Insect Pests and Yield

Influence of Fertilization and Plant Density on Population of some Maize Insect Pests and Yield

Effect of sowing dates on the populations of three major insect pests and associated natural enemies throughout the growth stages of maize plants

Contact Info

Product

Resources

About