2024 Maize whorl

Maize whorl

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Web1 dec. 2024 · Using damage rating scales and artificial infestation in controlled conditions, we determined the potential of IST against FAW attacking maize whorl leaves or the stalk base. RESULTS Chlorantraniliprole, cyantraniliprole, or thiodicarb + imidacloprid IST similarly killed > 80% FAWs for 1 or 2 weeks after plant emergence depending on the … http://www.ichacha.net/whorl.html

INTEGRATED PEST MANAGEMENT IN THE SMALL FARMER

Web5 jun. 2024 · Since the invasion of the fall armyworm moth (Spodoptera frugiperda) in China in January 2024, damage to maize crops has gradually intensified, and chemical control has become the main control measure. This study aimed to examine methods of effective pest control while monitoring the environmental impact of pesticide use. The effectiveness of … WebDespite large-scale commercial maize production, little is known about the defensive responses of field-grown commercial maize to O. furnacalis herbivory, ... The Asian corn borer Ostrinia furnacalis feeding increases the direct and indirect defence of mid-whorl stage commercial maize in the field Plant Biotechnol J. 2024 ... mark travis carshield wikipedia

American Journal of Botany

WebIn maize, feeding first occurs in the whorl. Shotholes are visible when the leaf unrolls from the whorl. Later, the larvae bore down midribs of leaves into the stalk. Frass and silk near entrance holes are evidence of the presence of larvae. Extensive amounts of frass may … Web13 mei 2024 · The maize plants at the mid-whorl stage have more potential than plants at the V3 stage to induce genes, and produce more DEGs, when subjected to O. furnacalis herbivory according to the hypothesis of trade-off between constitutive and inducible resistance traits in plants (Morris et al., 2006). Web18 apr. 2024 · Soil paste application on the maize whorl is used but is not considered effective. In central America, a combination of various methods like minimum tillage, biomass mulching, intercropping, and diversification of the farm environment through crop rotation were effective control methods. Biological control methods for FAW mark travers bournemouth

Seed treatment for managing fall armyworm as a defoliator and …

Webwhorl 뜻 whorl перевод whorlとは意味百科解释 A whorl is a type of spiral or circular pattern. 详细百科解释相关词汇 whoreson 中文 , whorf 中文 , whorfian hypothesis 中文 , whorfian假说中文 , whorish 中文 , whorl expansion rate 中文 , whorl height 中文 , … mark travis llewellynWeb13 apr. 2024 · PDF Maize, Zea mays L. is an important cereal crop in Nigeria whose production has, in recent times, been constrained by the fall armyworm, Spodoptera... Find, read and cite all the research ... nayef alshammari economics

"Web7 jul. 2014 · Although the gene of AP1 in rice and maize have been cloned [52,53,54], there has been no report of a detailed analysis of either their expression or their fuction. In wheat, the expression levels of TaVRT-1 [ 55 ] and WAP1 [ 56 ] are positively associated with the vernalization response, and in the transition from vegetative to reproductive phase. " - Maize whorl

Maize whorl

(PDF) Bioefficacy of granular insecticides against fall armyworm ...

Weball the aerial parts of the maize plant, viz. leaf whorl, stem, tassel, and cob, and cause parallel rows of oblong holes on leaves and dead hearts by boring into the stem21–23. Although considered as a leaf-feeding insect, FAW is known to attack other parts of the maize plant such as whorl, tassel and ear head24. The major symptoms caused Web3 mrt. 2024 · Maize brace root mechanics vary by whorl, genotype and reproductive stage. Get access. Ashley N Hostetler, Lindsay Erndwein, Elahe Ganji, Jonathan W Reneau, Megan L Killian, Erin E Sparks. Annals of Botany, Volume 129, Issue 6, 12 May 2024, …

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Web1 dec. 2015 · Whorl rot is a novel disease of corn found in the Huang-Huai-Hai Plain, China. Common symptoms of the disease in fields include yellowing and water-soaked brown necrosis of young leaves in the... Web16 jan. 2024 · Sweet maize is a high value vegetable crop where fresh kernels are eaten by humans. Consumer preferences demand little to no insect feeding damage to kernels of sweet maize, but meeting these demands often involves intensive insect control …

Web4.3.4.1. Plant sensitivity at various whorl stages 126 4.3.4.2. The effect of whorl protection under soil moisture stress 126 4.3.4.3. The effect of irrigation on whorl infestation 129 4.3.5. Summary and conclusions 131 4.4. D. lineolata : yield and plant development of artificially infested maize culti vars. Methods of loss assessment 131 4.4.1. Web8 dec. 2024 · The corn leafhopper Dalbulus maidis (DeLong & Wolcott) is one of the most important maize (Zea mays L.) pests in Latin America because of its ability to efficiently transmit pathogens [maize bushy stunt phytoplasma (MBSP) and corn stunt spiroplasma—Spiroplasma kunkelli Whitcomb et al. (CSS)] associated with corn stunt …

Web1 apr. 2024 · Water in maize whorl enhances the control of Spodoptera frugiperda with insecticides Authors: Adriano Bialozor Clérison Regis Perini Universidade Federal de Santa Maria Jonas André Arnemann... WebIn addition, the maize leaves previously infested by O. furnacalis for 24 h showed an obvious inhibition of the subsequent O. furnacalis performance, and maize volatiles induced by O. furnacalis feeding for 24 and 48 h attracted the parasitic wasp, Macrocentrus …

Web1 mrt. 2024 · Whorl-stage maize provides a microclimate refuge for predatory ladybeetles. Irrespective of prey numbers, ladybeetle adults attained high abundance on whorl-stage maize. Over 88% of adults were found within the maize whorl. Whorl …

Webmaize; oxylipin; Ten-oxo-11-phytoenoic acid; 9-lip-oxygenase; 12-oxophyto-dienoic acid Cyclopente(a)none oxylipins regulate diverse biological pro-cesses. In animals, prostaglandins formed by cylcooxygenases have hormone-like effects that sustain homeostatic functions and mediate pathogen interactions, including inﬂammation nayef al-rodhanWeb26 aug. 2015 · (a) Maize whorl showing accumulation of FAW frass (black arrow) after larval feeding for 24 hr. Frass accumulates in the enclosed space of maize whorl in close proximity to sites damaged by caterpillar feeding (b) Full size image Methods and Materials Plant and Insect Materials mark treacher dwfWeb6 apr. 2024 · While the homologies of pistils, stamens, and lodicules are clear, there are two main hypotheses for lemma and palea homology. The first, based on morphology and development, places the palea in the outermost floral whorl, and the lemma as a subtending bract (Kellogg, 2000).The second, based on molecular genetics, places the lemma and … mark travis walpole maWebMeans 1 of maize grain yield (kg ha 1) in response to combinations of the treatment factors water inside the whorls (no or with), spray sets (S1 to S5) and insecticide (chlorantraniliprole or chlorfenapyr) used for the damage control of Spodoptera frugiperda . nayef alshammari political driversWeb12 jun. 2024 · This experiment told them that the defect found in the embryo was also present in other organs that initiate within the same whorl. Cloning CUC2 using the endogenous TAG1 transposon showed that it was homologous to the petunia ( Petunia … nayef alshammari economics kuwaitWeb11 apr. 2024 · One calibrated shot was added to the whorl of each V7-V8 stage maize plant (Benson and Reetz 1985) and another calibrated shot was added the next day, for a total of approximately 30 neonates per plant. The infestation … nayef carWebMaize is subject to attack by a number of pests and diseases, mainly in insect pests (stalk borers and armyworms) and soil pests (wireworms and rootworms). Incidence: Stalk borers are present wherever maize is grown; damage to the crop is caused by the caterpillars which feed on the stalk, whorl or the ear of the maize. nayef arms