Efficacy of combining varietal resistance with harvest time and planting date for the management of Sitophilus zeamais Motschulsky infestation in stored maize

Zakka, Usman; Lale, N. E. S.; Umeozor, O. C.

doi:10.1016/j.jspr.2014.10.005

Cited by 8 publications

(5 citation statements)

References 6 publications

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“…progeny emergence (Borikar and Tayde, 1979), low larval penetration (Shazali, 1982;Wongo and Persen, 1990), increased progeny emergence (Adentuji, 1988) and low loss in seed weight (M'bata, 1992). Combining early planting with early harvest with resistant varieties proved to be effective for management of maize weevils in the stores in Niger Delta-agro-ecological zone (Zakka et al, 2015).…”

Section: Host Plant Resistancementioning

confidence: 99%

Control strategies and breeding efforts in sorghum for resistance to storage weevils

Alina¹

2016

Afr. J. Agric. Res.

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Sorghum (Sorghum bicolor L. Moench) is one of the main staple cereal crops grown worldwide. It is used for food, feed, fodder and bio-ethanol. Biotic and abiotic challenges are the major constraints of the crop. Among the biotic constraints, weevil attack is the most devastating causing yield reduction ranging between 15 and 77%. This paper highlights control strategies and progresses of breeding sorghum towards improved yield and weevil resistance. The use of resistant varieties is an economically feasible, technically easy and environmentally friendly alternative to minimize losses due to storage insect pests. Breeding for post-harvest insect pest resistance is the most important component to improve yield and reduce the impact of weevils. Also to combine resistance to postharvest insect pests with other desirable plant characters such as high yield, and good quality to provide the basic foundation on which to build an integrated pest management system. Estimation of combining ability to resistance to weevils in sorghum helps in selection of good combiners, and the nature of gene action involved. Marker assisted breeding could have a complementary role in sorghum breeding for introgression of resistance genes and their fast enhancement in succeeding generations in the breeding programmes. This review provides theoretical bases on the progress of breeding sorghum for weevil resistance and control strategies.

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Section: Host Plant Resistancementioning

confidence: 99%

Control strategies and breeding efforts in sorghum for resistance to storage weevils

Alina¹

2016

Afr. J. Agric. Res.

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“…Moreover, the indiscriminate use of chemical insecticides is a great threat causing pollution, development of insecticide resistance, residual effects in food products causing health issues, causing population imbalance of non-targeted organisms and high input costs (Cherry et al, 2005). In contrast to synthetic chemicals planting of weevil resistant varieties is a sustainable and economically viable option for minimizing losses caused by maize weevil (Derera et al, 2014;Zakka et al, 2015). Many varieties of stored grain possess qualities which make them less attractive to insect attack compared to others and are regarded as resistance or less susceptible varieties.…”

Section: Introductionmentioning

confidence: 99%

Relative resistance of maize varieties against maize weevil, Sitophilus zeamais (Motschulsky), (Coleoptera: Curcolionidae)

Mamoon-ur-Rashid¹

2021

PAKJAS

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The maize weevil, Sitophilus zeamais (Motschulsky) (Coleoptera: Curculionidae), is one of the most damaging pests of stored cereals causing severe damage to stored grains. In current investigation, six open pollinated maize varieties viz. JALAL (white), AZAM (white), SADAF (yellow), ZARD LOCAL (yellow), KASHMIRI (yellow) and PAHARI (white) were screened out in the laboratory of Entomology Department, Faculty of Agriculture, Gomal University, Dera Ismail Khan, Pakistan for their relative susceptibility/resistance to maize weevil. The experiment was laid out following completely randomized design (CRD) with 5 replicates. Results revealed that minimum (23.8) days to adult emergence of maize weevil were recorded when it was reared on variety Azam; whereas; maximum (34.2) days were recorded on variety Sadaf. Total number of F1 adults emerged were maximum (91) in Azam while minimum (62) in variety Sadaf. Percent infestation of maize kernels was maximum (39.01%) in Azam while minimum (25.80%) was recorded in variety Sadaf. Percent weight loss was maximum in Azam i.e. 26.12% while minimum percent weight loss (16.88%) was recorded in Sadaf. Maximum longevity (68.4 days) of adult weevils was recorded on Azam while minimum (53.4 days) was recorded on variety Sadaf. All the tested varieties had no significant effect on the sex ratio of emerged weevils. High germination percentage was recorded in Sadaf (90%) whereas; low germination was found in Azam (57%). The grain hardness test indicated that yellow varieties including Sadaf, Zard local and Kashmiri had maximum hardness having 317, 302.33 and 296 N grain hardness, whereas; white varieties i.e. Pahari, Jalal and Azam had minimum values of grain hardness i.e. 264.33, 251.66 and 238.33 Newton. The present work has shown that Azam is the most susceptible variety and should not be stored for longer periods whereas; Sadaf is the resistant variety against maize weevil.

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“…Suleiman et al (2015) observaron que granos almacenados a temperaturas mayores de 27 °C presentaron daños severos de infestación, y las poblaciones del insecto presentaron un crecimiento exponencial. Por otro lado, se han asociado las fechas de siembra con la intensidad de la infestación y daño causado en el grano cosechado; se observó que las fechas tempranas fueron las menos afectadas (Zakka et al, 2015).…”

Section: Introductionunclassified

CONTROL DE GORGOJO (Sitophilus zeamais MOTSCHULSKY) CON POLVOS DE EPAZOTE (Dysphania ambrosioides (L.) MOSYAKIN & CLEMANTS) EN DIFERENTES GENOTIPOS DE MAÍZ

et al. 2020

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Durante el manejo postcosecha del maíz (Zea mays L.) se presentan pérdidas importantes por el ataque de plagas de almacén, particularmente por gorgojo (Sitophilus zeamais Motschulsky). El objetivo del presente estudio fue evaluar la efectividad del epazote (Dysphania ambrosioides) para controlar los daños por gorgojo en maíz. Semillas de 11 genotipos de maíz, nueve experimentales y dos híbridos comerciales, todos con humedad de 13 % y sin daño físico que indicara la presencia de insectos, fueron sometidos a tratamientos con polvo de epazote en cuatro concentraciones (0, 5, 7 y 10 g de epazote kg-1 de semilla) para controlar gorgojo. Se utilizó un diseño completamente al azar con arreglo factorial y tres repeticiones. La unidad experimental consistió en una caja de plástico acondicionada donde se colocaron 100 semillas, previamente pesadas, junto con 50 gorgojos jóvenes y la dosis correspondiente de polvo de epazote. Las variables registradas fueron pérdida de peso, granos dañados y sobrevivencia de insectos, todos expresados en porcentaje. Hubo diferencias entre genotipos de maíz solamente para pérdida de peso (P ≤ 0.05); todos los genotipos de maíz registraron pérdidas; sin embargo, el híbrido CLTHW14001 fue el menos afectado con 3.5 % de pérdida de peso. Las dosis de 7 y 10 g de epazote kg-1 de semilla fueron sobresalientes en las variables pérdida de peso, granos dañados y sobrevivencia de insectos, con 3.4, 12.2 y 3.5 % en promedio, respectivamente. El híbrido CLTHW14001 mostró el menor daño con la dosis de 7 g de epazote kg-1 de semilla con 0.94 % de pérdida de peso. El uso de polvo de epazote para el control de gorgojo es efectivo en concentraciones desde 7 g kg-1 de semilla. El genotipo de maíz influye en la efectividad del tratamiento.

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Efficacy of combining varietal resistance with harvest time and planting date for the management of Sitophilus zeamais Motschulsky infestation in stored maize

Cited by 8 publications

References 6 publications

Control strategies and breeding efforts in sorghum for resistance to storage weevils

Control strategies and breeding efforts in sorghum for resistance to storage weevils

Relative resistance of maize varieties against maize weevil, Sitophilus zeamais (Motschulsky), (Coleoptera: Curcolionidae)

CONTROL DE GORGOJO (Sitophilus zeamais MOTSCHULSKY) CON POLVOS DE EPAZOTE (Dysphania ambrosioides (L.) MOSYAKIN & CLEMANTS) EN DIFERENTES GENOTIPOS DE MAÍZ

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