Results 21 to 30 of about 468,444 (243)

Pest control using farming awareness: impact of time delays and optimal use of biopesticides [PDF]

open access: yesChaos Solitons Fractals 146 (2021), Art. 110869, 11 pp, 2021
We investigate a mathematical model in crop pest management, considering plant biomass, pest, and the effect of farming awareness. The pest population is divided into two compartments: susceptible pest and infected pest. We assume that the growth rate of self-aware people is proportional to the density of healthy pests present in the crop field ...
arxiv   +1 more source

Effects of Managed and Unmanaged Floral Margins on Pollination Services and Production in Melon Crops

open access: yesInsects, 2023
Melon is among the most consumed fruits in the world, being a crop that depends almost entirely on insects for its reproduction, which is why it is especially sensitive to declining pollination services.
María Pérez-Marcos   +5 more
doaj   +1 more source

Controlling crop pest with a farming awareness based integrated approach and optimal control [PDF]

open access: yesComput. Math. Methods 3 (2021), no. 6, Paper e1194, 1--24, 2021
We investigate a mathematical model in crop pest controlling, considering plant biomass, pest, and the effect of farming awareness. The pest population is divided into two compartments: susceptible pests and infected pests. We assume that the growth rate of self-aware people is proportional to the density of susceptible pests existing in the crop arena.
arxiv   +1 more source

Six new species of Zaischnopsis Ashmead (Hymenoptera: Chalcidoidea: Eupelmidae) from China based on morphological and molecular data

open access: yesEuropean Journal of Taxonomy, 2022
Six new species of Zaischnopsis Ashmead (Hymenoptera: Eupelmidae) from China are described, Zaischnopsis covid Jiang & Peng sp. nov., Zaischnopsis fuscolivida Tang & Peng sp. nov., Zaischnopsis lii Jiang & Peng sp.
Hao Tang   +4 more
doaj   +1 more source

Dynamics of a Double-Impulsive Control Model of Integrated Pest Management Using Perturbation Methods and Floquet Theory [PDF]

open access: yesAxioms 12 (2023), no. 4, Art. 391, 14 pp, 2023
We formulate an integrated pest management model to control natural pests of the crop through the periodic application of biopesticide and chemical pesticides. In a theoretical analysis of the system pest eradication, a periodic solution is found and established. All the system variables are proved to be bounded.
arxiv   +1 more source

First complete mitochondrial genome from the genus Coptodryas (Coleoptera: Curculionidae: Scolytinae) and its phylogenetic implications

open access: yesMitochondrial DNA. Part B. Resources, 2022
The complete mitochondrial genome (mitogenome) of Coptodryas elegans was determined, which represents the first sequenced mitogenome from Coptodryas. This mitogenome is 15,959 bp in size and comprises 36 typical coding genes and a control region, the ...
Qiuhong Guo   +5 more
doaj   +1 more source

Two species of Dolichomitus Smith, 1877 (Hymenoptera, Ichneumonidae, Pimplinae) parasitizing borers of Juglans mandshurica Maxim. and a key to species known from China

open access: yesEuropean Journal of Taxonomy, 2022
Two species of Dolichomitus Smith, 1877 emerged from the trunks of Juglans mandshurica Maxim. in Kuandian and Benxi Manzu Autonomous Counties, Liaoning, in the Palaearctic part of China. One new species, D. juglanse Sheng #38; Li sp.
Mao-Ling Sheng   +4 more
doaj   +1 more source

Optimal Spraying in Biological Control of Pests [PDF]

open access: yesMathematical Modelling of Natural Phenomena, 2017
This is a preprint of a paper whose final and definite form is: Math. Model. Nat. Phenom. 12 (2017), no.
Silva, C. J.   +2 more
openaire   +5 more sources

Biological Control of Pests [PDF]

open access: yes, 2011
Modern era is witnessing versatile application and utilization of prophecies, processes, and products of sustainable agriculture that pose minimum or negligible negative impacts on environment. Use of microorganisms for curbing the attack of plant pathogenic organisms/pests forms the foremost limb of integrated pest management and is responsible for ...
Rajinder K. Mudhar, Anu Kalia
openaire   +1 more source

Native parasitoids and a novel invasive host:Linking evolutionary ecology and biological pest control [PDF]

open access: yes, 2022
The use of natural enemies to control pests is of increasing importance in agriculture because pesticide application has become restrictive. One of the major challenges within biological pest control is to find natural enemies that have the right ...
Kruitwagen, Astrid J.
core   +1 more source

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