Risk assessment of soil-pest damage to grain maize in Europe within the framework of Integrated Pest Management

Furlan, Lorenzo; Vasileiadis, Vasileios; Chiarini, Francesca; Huiting, H.F.; Leskovšek, Robert; Razinger, Jaka; Holb, I. J.; Sartori, Erica; Urek, Gregor; Verschwele, Arnd; Benvegnù, Isadora

doi:10.1016/j.cropro.2016.11.029

Cited by 33 publications

(27 citation statements)

References 14 publications

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“…However, in contrast to our experiment, these studies were performed using artificially infested maize plants with WCR eggs, resulting in severe damage to untreated maize plants but not to the nematode-treated maize plants in which the root damage was kept below the economic thresholds [28,46]. Our study, where the natural WCR larval population in the soil did not cause significant root damage [42], did not allow us to evaluate potential lodging prevention, although it showed that H. bacteriophora controlled WCR larvae as well as tefluthrin, one of the commonly used chemicals for WCR management in Europe and the USA [47,48]. The data recorded in the present study for the agent tefluthrin are contrary to the observations of [49,50], where the application of tefluthrin soil insecticide made no significant impact on the emergence of WCR.…”

Section: Discussionmentioning

confidence: 80%

Evaluation of the Field Efficacy of Heterorhabditis Bacteriophora Poinar (Rhabditida: Heterorhabditidae) and Synthetic Insecticides for the Control of Western Corn Rootworm Larvae

Modic

Žigon

Kolmanič

et al. 2020

Insects

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The western corn rootworm (WCR), Diabrotica virgifera virgifera LeConte (Coleoptera, Chrysomelidae), is an important insect pest of maize in North America and Central and Eastern Europe. In Central Europe, the larvae emerge in May and its three instars feed intensively on maize roots in June, causing plant lodging that leads to a loss of economic yield. A three-year field experiment (2016–2018) was conducted to compare the effectiveness i) of soil-applied granular insecticide based on the active ingredient tefluthrin, ii) of maize seeds dressed with thiacloprid, and iii) entomopathogenic nematodes Heterorhabditis bacteriophora Poinar (Rhabditida: Heterorhabditidae, product Dianem) against WCR larvae. An additional treatment with alcohol ethoxylate (i.e., soil conditioner) mixed with entomopathogenic nematodes was performed in 2017 and 2018 to check for any increase of entomopathogenic nematodes’ effectiveness. Field tests were carried out in two fields infested naturally with a WCR pest population, one in Bučečovci (Eastern Slovenia) and the other in Šmartno pri Cerkljah (northern Slovenia), exhibiting dissimilar pedo-climatic conditions and soil pest densities. The treatments were performed in five replicates per experiment in each year. The efficacy of the treatments was very similar at both locations, despite the approximately five-fold lower WCR soil pest densities in northern than in eastern Slovenia, as well as being constant over time. The largest number of WCR beetles was observed in the negative control, followed by that of beetles subjected to thiacloprid treatment (insignificant decrease taking into account the entire three-year dataset). Treatments with tefluthrin (44.1 ± 11.7%), H. bacteriophora (46.2 ± 7.4%), and H. bacteriophora + alcohol ethoxylate (49.2 ± 1.8%) significantly decreased the numbers of emerging beetles. Treatments of thiacloprid, H. bacteriophora, and H. bacteriophora + alcohol ethoxylate additionally led to significantly increased maize plant weights. Furthermore, entomopathogenic nematodes were able to persist in maize fields for almost five months at both experimental locations in silty and sandy loam soils. It was concluded that the control of WCR larvae in maize using the entomopathogenic nematode H. bacteriophora is as effective as a tefluthrin treatment, and could thus offer a sustainable Diabrotica v. virgifera biological control management option in Europe.

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Section: Discussionmentioning

confidence: 80%

Evaluation of the Field Efficacy of Heterorhabditis Bacteriophora Poinar (Rhabditida: Heterorhabditidae) and Synthetic Insecticides for the Control of Western Corn Rootworm Larvae

Modic

Žigon

Kolmanič

et al. 2020

Insects

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“…These risk maps may be immediately useful for implementing IPM and for tackling the soil pests that threaten maize crops in many European regions and beyond. This may lead to a considerable reduction in the use of soil insecticides thanks to an improvement in the procedures described in a previous paper 5 , which can be updated with adult thresholds found in this research (Fig. 4).…”

Section: Resultsmentioning

confidence: 79%

“…This long-term research allowed us to assess the biological meaning of click beetle population levels, as assessed by Yf traps, for the main wireworm species in southern Europe. Yf adult catches can be used as a single risk factor for maize plant damage by wireworms (Table 5), or in association with other risk factors 4,5 . In the latter case, it is highly likely that this combination of factors will improve the reliability of wireworm damage risk assessment in Table 5.…”

Section: Resultsmentioning

confidence: 99%

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The use of click beetle pheromone traps to optimize the risk assessment of wireworm (Coleoptera: Elateridae) maize damage

Furlan

Contiero

Chiarini

et al. 2020

Sci Rep

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Maize seeds are routinely coated with insecticide to target Agriotes spp. larvae (wireworms). However, in order to find fields where pest control is actually needed, it might be useful to estimate the adult Agriotes population levels and thus the pressure they exert, with a low-cost risk assessment tool, such as YATLORf (Yf) sex pheromone traps. A database containing 17 consecutive years (1998-2014) of field monitoring was analyzed, with information including both pheromone-trap catches of adults and maize-plant damage by wireworms. Significant associations were discovered between seasonal adult catches in-field, subsequent wireworm populations, and plant damage/yield reduction. When each trap contained over 1,100 A. sordidus adults and over 210 A. brevis adults one year prior (Y-1), the risk of 15%-plus plant damage in Year 0 (Y0) increased by 6 times and 37 times respectively when compared with lower numbers. More than 1,000 A. brevis adults/trap two years prior (Y-2) increased the risk of 15%-plus plant damage in Y0 by 13 times when compared with lower numbers. Cumulative thresholds were also found in Y-1 and Y-2 at the same site. Yf threshold values allowed us to detect fields with a negligible crop-damage risk and thus to reduce the use of insecticides. Insecticides, including high-impact ones, such as neonicotinoids 1 , are used prophylactically worldwide in maize and other annual crops 2. Most farmers apply soil insecticides at planting to combat wireworms (Agriotes spp. larvae), but they do not evaluate whether an economically damaging wireworm population is present 2. This approach is used because farmers are generally unaware of Integrated Pest Management (IPM) strategies, little independent advice is available, and simple low-cost, low time-consuming monitoring tools are unknown to them 3. Easy-to-use, economical, and reliable tools are needed to monitor the main arable crop pests if all farmers in EU Member States are to meet the compulsory objectives of Directive 128/2009/EC. Therefore, the availability of effective low-cost monitoring tools for Europe's main soil pests (Agriotes spp. 4,5) is a key factor for improving the situation and will make it easier to implement IPM in the main arable crops (maize, sunflower and canola). The use of these tools would allow researchers to locate areas and/or fields with pest populations below the economic threshold, as they account for the vast majority of the cultivated land 4,5. One potential tool is the YATLORf trap (Yf) 6,7. Produced by ROSA Micro S.r.l., this effective, non-saturable trap is baited with the pheromone lure of a given species, performs species-selective catches, and can be used to monitor adults of Agriotes species (click beetles) in a specific area. Yf traps have been developed and optimized for all major pest of Agriotes genus in Europe (A. brevis Candeze, A. lineatus L., A. litigiosus Rossi, A. obscurus L., A. rufipalpis Brullé, A. sordidus Illiger, A. sputator L., A. ustulatus Schäller) 6,8,9 , with some of these species being major pests...

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“…Чимало наукових робіт присвячені особливостям захисту сільськогосподарських культур за різних погодно-кліматичних умов (Adamenko, 2006;Oliveira et al, 2014;Lorenzo et al, 2016;Milosavljevic and Esser, 2016). Так, для виявлення та подальшого захисту зернових культур від шкідників застосовують різні технології та методи контролю фітофагів у сучасному землеробстві (Andriichenko et al, 2004;Bomba, 2007;Jevtic et al, 2017;Bayram and Tonga, 2018).…”

Section: вступunclassified

The optimization of modern measures of winter wheat protection from pests in the Forest-Steppe region of Ukraine

Sakhnenko

2018

SMLNUVMBA

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The peculiarities of ecology of certain types of pests breeding in field crops are highlighted. The indicators of the influence of a complex of factors on development and mass reproduction of insects under modern agricultural systems are generalized. The species composition of insect phytophages in new crops is specified. More than 20 species of pests were identified that severely damaged this crop according to the results of the monitoring of the wheat entomocomplex. The analysis of influence of temperature, air and soil on the trophic links of phytophages and development and survival of their stages was conducted. A close connection between the level of productivity and the stages of organogenesis of plants with separate stages of development of the main species of phytophages was established. The analysis of efficiency of application of modern monitoring of a complex of pests at new systems of protection of winter wheat has been carried out. Cereal flies, aphids and other pests are found are found on wheat. The basic ecological and biological peculiarities of the formation of the entomocomplex of winter wheat are determined. The peculiarity of monitoring and control of harmful insect species on winter wheat crops in the forest-steppe of Ukraine is highlighted. The analysis of the modeling efficiency of the number of harmful and useful insect for resource-saving systems of winter wheat protection is carried out. The peculiarities of biology and ecology of pests of stem and of the root system of winter wheat in the region of research are specified. The peculiarities of the formation of entomocomplexes in agrocenoses vary according to certain parameters, in particular the number of soil and interstitial phytophages, taking into account the radius of their daily displacement. It is relevant to determine the total demand of pests in feeding at the actual population of individuals at different stages of ontogenesis of grain crops for effective crop management. The application of resource saving models of the calculation of phytophage dynamics on cereal crops by hydrothermal coefficient at different periods of development of plants and phytophages in the production, which allows to determine the quantitative changes of a separate entomocomplex in grain crops in time and space. The development and introduction of integrated methods for the control of winter wheat pests according to modern agricultural systems in the forest-steppe of Ukraine, which determines the expected loss of grain in the crop fields becomes important.

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Risk assessment of soil-pest damage to grain maize in Europe within the framework of Integrated Pest Management

Cited by 33 publications

References 14 publications

Evaluation of the Field Efficacy of Heterorhabditis Bacteriophora Poinar (Rhabditida: Heterorhabditidae) and Synthetic Insecticides for the Control of Western Corn Rootworm Larvae

Evaluation of the Field Efficacy of Heterorhabditis Bacteriophora Poinar (Rhabditida: Heterorhabditidae) and Synthetic Insecticides for the Control of Western Corn Rootworm Larvae

The use of click beetle pheromone traps to optimize the risk assessment of wireworm (Coleoptera: Elateridae) maize damage

The optimization of modern measures of winter wheat protection from pests in the Forest-Steppe region of Ukraine

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