The effect of prohexadione-calcium, a plant growth regulator that inhibits gibberellin metabolism, on Cacopsylla pyricoloa (Foerster) in pear trees, and Choristoneura rosaceana (Harris) and Aphis spireacola Patch, in apple trees was studied. C. pyricoloa and A. spireacola populations were significantly reduced in prohexadione-calcium-treated pear and apple, respectively. Insecticide control of both pests with imidacloprid was synergized in treatments with prohexadione-calcium. In apples treated with prohexadione-calcium, there was a significant reduction in the number of C. rosaceana shelters per tree and amount of fruit injury at harvest attributable to the C. rosaceana. There was an additive effect when tebufenozide was used to control C. rosaceana in trees treated with prohexadione-calcium. Prohexadione-calcium significantly reduced vegetative growth in both pears and apples. Synergistic and additive treatment effects of prohexadione-calcium and pesticides used in this study may be due to better penetration and coverage of pesticides due to reduced foliar growth or to changes in the nutritional quality of the host plants.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1093/jee/98.2.423 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Identification, biological characterization of Cladobotryum mycophilum and its control during the fruiting process of Lyophyllum decastes.
Arch Microbiol
January 2025
College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, 350002, People's Republic of China.
Lyophyllum decastes is a type of edible and medicinal mushroom with high nutritional value. However, it can be infected by fungi during the fruiting process, which impairs the development of the industry. In this study, one pathogenic fungus was isolated from the diseased fruiting bodies of L.
View Article and Find Full Text PDFExploration of endophytic and rhizospheric bacteria of invasive plant Xanthium strumarium L. reveals their potential in plant growth promotion and bacterial wilt suppression.
Braz J Microbiol
January 2025
Department of Botany, Gauhati University, Gopinath Bordoloi Nagar, Jalukbari, Guwahati, 781014, Assam, India.
Plant-associated microbiome plays important role in maintaining overall health of the host plant. Xanthium strumarium displaying resilience to various environmental fluctuations may harbor some bacterial isolates which can help this plant to grow worldwide. The present study aims to isolate endophytic and rhizospheric bacteria from X.
View Article and Find Full Text PDFBiofilm formation by the plant growth promoting bacterium Bacillus cereus (EB-40).
Braz J Microbiol
January 2025
Programa de Pós-Graduação em Produção Vegetal no Semiárido, Universidade Estadual de Montes Claros, Rua Reinaldo Viana, 2650, Janaúba, MG, 39400-000, Brazil.
The objective of this work was to investigate the biofilm production capacity of the isolate EB-40 (Bacillus cereus) in a culture medium for the multiplication of microorganisms and in roots of in vitro grown banana explants. It was observed that the isolate was able to produce biofilms in tryptone, soy and agar (TSA) culture medium and in the roots of explants. The format, architecture and location of the biofilms in TSA culture medium presented an exopolymer matrix formed by EB-40 presented coccoid bacillary cells and fibrillar structures.
View Article and Find Full Text PDFAn assessment of plant growth and physiological responses in annual crops grown in P deficient soils inoculated with indigenous arbuscular mycorrhizal fungi.
Braz J Microbiol
January 2025
Department of Agriculture, Postgraduate Program in Agroecology, Federal University of Paraiba, Bananeiras, PB, Brazil.
The influence of arbuscular mycorrhizal fungi (AMF) inoculation on the growth and physiology of Phaseolus vulgaris L. and Zea mays L. in the Brazilian tropical seasonal dry forest is not well known.
View Article and Find Full Text PDFDecay of self-incompatibility within a lifespan in Physalis acutifolia (Solanaceae).
Plant Reprod
January 2025
Department of Ecology and Evolutionary Biology, University of Colorado, 1900 Pleasant Street, Boulder, CO, 80309, USA.
Self-incompatibility decays with age in plants of Physalis acutifolia, and plants that have transitioned to selfing produce fewer seeds but with comparable viability. Self-compatibility in this system is closely related to flower size, which is in turn dependent on the direction of the cross, suggesting parental effects on both morphology and compatibility. The sharpleaf groundcherry, Physalis acutifolia, is polymorphic for self-compatibility, with naturally occurring self-incompatible (SI) and self-compatible (SC) populations.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!