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Gli adulti vivono preferibilmente sotto … Exposed bait traps were analysed, (sieving machine Retsch AS 200 – sieving time 2. hidden infestation for one month (27°C, 75% r. h.). Trials were conducted over 8-week trapping periods and S. granarius were seeded into the bulk at a density of one per kg. 0000001379 00000 n
All rights reserved. Adults of Sitophilus granarius can vary considerably in size; between 2.5-5.0 mm in length, although 3 to 4 mm is usual. This is also true for protocols designated for monitoring and evaluation of pests and pesticide risks. Adult grain pest insects and beneficial insects were removed and identified. Anisopteromalus calandrae comprised 88.9% of the total number of beneficial insects found. .�E�\! comprised about 80% of the pest insects collected. The antennae of Sitophilus granarius (L.) (Coleoptera: Curculionidae) adults detect a wide variety of compounds in the odor blend of various cereal grains (Germinara et al., Tec. The primary pest Sitophilus granarius was dominant. Sci., 41: 86-89. 3). There were Method of sampling and laboratory extraction affects interpretation of grain infestation by storage... Spatio-temporal distribution of stored-product insects around food processing and storage facilities. The aim of this work was to explore the species composition and abundance of mites and insects in Biology Eggs – Up to 250 per female, average 200; internal feeder – eggs laid inside the grain. Primary pests Acarus siro –, sidues in the Czech Republic. 1991: Insects and arachnids of. Anche molti derivati dei cereali aventi una certa consistenza, "��+RC��M� A��G����O����咮K=�v��zi of the wheat grain from the store. (Coleoptera: Laemophloeidae), Oryzaephilus surinamensis (L.) (Coleoptera: Silvanidae) and Sitophilus spp. The population of 4), but, ture (Howe 1965). The species composition, frequency and abundance of insect pests (Coleoptera ) occurring outside a grain store were explored. The. Wheat bait traps were used for pest monitoring; they were changed every month from April to September. In storage facilities one can find grain either in stored grain mass or in grain residues in the store corners or machinery. I. Oviposition, distribution of eggs and adult emergence. Consequently, we explored how the insecticides Ficam 80WP, K-Othrine The weevils were captured in grai, differences in weevil’s abundance and frequency depe, granary weevil in baits from hidden infestation (e. incubation period compared to primary infestation. were found in the grain residues. Bait-traps exchange, was documented in the Czech Republic for the first time. Wheat in bins and discharge, ns in concrete grain elevators as habitats. 25, and Actellic EC50 are robust or sensitive to the measured extent of over-dosage (2x) or, European-Union countries undergo the process of unifying laws. �1�^�����՝=� @K��#+++��G��U7�BvC�i��8�g'�N|����N�>{�}rzr���ݝ>=��� �z%;��;}q������l�`������O�@�e()e\!�E�d�
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granary weevil in baits from hidden infestation (eggs) increased 10 - 50 times after one month of �E||�T5�|��� �T�&(7d�/�2{L�Ȣ�x�G���,�_LE�ު�{L�#[�}�u%J�'�p$�esZ0���b�3@P4�)��(�`��x�s���t�J�1ʉ�����*��C,BtJ}�ͤ���QU�{�uz@���#N���. ucts. RT/WP��*ƻ>1.�jE��K��lkވ�2�J٨���K�w��i�F�W�3�S�������$��[Ԡ�-C����{u�P��Gʅ��l�!���E���X�k�I5�
�K�eHc�m��P�`Ƶ�Ɛ�0�՚���{!ܛ�� -dNOPAUSE -dBATCH -sOutputFile=? SITOPHILUS GRANARIUS REV 02/2020 Informazioni riservate ai tecnici della disinfestaz ione, agronomi, medici, veterinari e autorità sanit arie EROGATORI DI FEROMONE PER SITOPHILUS GRANARIUS (CALANDRA E PUNTERUOLO DEL GRANO) Erogatore Tappino copri provette rovesciabile in gomma naturale vulcanizzata, colore verde, dimensioni 9 x 14 mm. The number of individuals increased 3–450 Stored wheat (grain) may have high resistance to insects because of the lack of vital nutrients provided and/or the presence of compounds that negatively affect insect development [8]. }WP'�Y>�>3�����PH��C�
�4��:��P�;1�U�P�qŰ��ST�� j�jaX�GTG��8vvQ�1*o���u��p�~�|k�Kj�iI�+������[Dk嫛�y�®0���/U�D���J��ҧ���p��k��! We suppose that the source, fluctuating temperatures between 0 - 10°C, s confirming that weevils can occur in certain, so during mild winters (e.g. In farm bins, the use of protectants on the grain tended to obscure expected relationships to environmental parameters. in the residues increased consistently through the warm months, peaked immediately after the warmest month, and declined gradually as ambient temperatures cooled. 1994: Seasonal act, (L.) subjected to constant and fluctuating, Advances in stored product protection, Proceedings of the 8, Haines, C.P. m.O��Jݓ�(d����;D��;�����b$�����m��KwA
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�9v002�(�����3�՚��Z_�/�k^~��S�Kߛ�'>���a`85s���3gN��!x"s���@V�C���. Weevils were captured during almost the entire year. Wheat bait-traps were, was carried out monthly throughout the year. – Experimen-, erová, Z., Aulický, R. & Stejskal, V. 2005: Ou. in residues of old grain after unloading the grain-store. The company Green Storage is developing methods for controlling insect pests before shipmen. The most abundant species collected were Ahasverus advena (Waltl), Tyhaea stercorea (L.), Rhyzopertha dominica (F.), and Cryptolestes. rectangle) in ten people. ���S���%_���=��\��. hidden infestation) in outdoor grain traps. er months, but only in south located traps. Information on pest population occurrence, The aim of this work was to study long term. 2006: Insect, populations in grain residues associated with commercial, Dowdy, A.K. Canonical correspondence analysis (CCA) of transformed abundance data showed differences in the communities of mites in grain mass and residues: (i) species associated to grain residues (e.g. Although the residue samples had more mites and higher species diversity than the stored grain mass, no correlation in mite abundance and species numbers between samples from grain residues and grain mass was found, thereby indicating low connectivity of these two habitats. The aim of this work was to explore the frequency and abundance of Sitophilus granarius The spatial and temporal, Join ResearchGate to discover and stay up-to-date with the latest research from leading experts in, Access scientific knowledge from anywhere. The ways in which a knowledge of the underlying causes of dispersion and accumulation aid in the detection and control of the pests and point to the optimum storage conditions are described. Environmental parameters describing the grain storage environment also were analyzed to help in explaining the relationship between insect densities inside and outside grain bins. The weevils were captured in grain baits almost throughout the year. Grain, in contrast to plant tissue, does not possess insect-defensive compounds such as alkaloids, saponins, non-protein amino acids, terpenoids or phenols [60], Silphidae, Dermestidae, Leiodidae, Histeridae of the south of the Russia, There is a need to fumigate fresh plants like flowers, fresh herbs and seedlings as quarantine treatment. erová*, Radek Aulický and Václav Stejskal, used for pest monitoring. which usually escapes the attention of farmers is highlighted. grain feeder was the dominant pest in comparison to 8 other species of Coleoptera found outside the 0000003327 00000 n
throughout the temperate regions of the world; on is limited more by its commodity associations. Distribution Worldwide, but primarily temperate zone, northern distribution. We compared two methods of sampling (surface sampling with cup-sampler vs. subsurface, Grain storage and processing facilities consist of a landscape of indoor and outdoor habitats that can potentially support stored-product insect pests, and understanding patterns of species diversity and spatial distribution in the landscape surrounding structures can provide insight into how the outdoor environment can be more effectively monitored and managed.