{"title":"Monitoring the appearance and possibility for prevention of the apple sawfly in Croatia","authors":"I. Ciglar, B. Barić","doi":"10.1046/j.1439-0280.2002.02013.x","DOIUrl":"10.1046/j.1439-0280.2002.02013.x","url":null,"abstract":"<p>The apple sawfly <i>Hoplocampa testudinea</i> Klug has recently become a widespread pest in Croatian apple orchards. It causes severe damage in the blooming period due to the fact that infested fruit fall off.\u0000\u0000This article shows results collected over three years of field research on trap catches of sawflies, the period of laying eggs, the appearance of larvae and detection of damage. In the climate of northwestern Croatia, adult sawfly appear in April during the blooming period of the early apple variety of <i>Idared</i>. By monitoring temperatures from January 1, adults were detected when the thermal constant reached 210 day-degrees. Our observations showed that the larvae emerged when the sum of thermal constants reached ca. 110 day-degrees. The investigation of effective control strategies with insecticides showed high efficacy of thiametoxam (Actara), imidacloprid (Confidor), thiacloprid (Calypso) and betacyfluthrin + oxydemeton-methyl (Enduro) and lower efficacy of phosalone (Zolone), chlorpyrifos-methyl (Reldan), and lambda cyhalothrin (Karate).</p>","PeriodicalId":100103,"journal":{"name":"Anzeiger für Sch?dlingskunde","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2002-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1046/j.1439-0280.2002.02013.x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114650250","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Phenology, damage and parasitoids of the apple leaf cutter Coenorhinus pauxillus (Germ.) (Col.: Attelabidae)","authors":"Leo H. M. \u0000 Blommers\u0000 \u0000 , Fredy W. N. M. \u0000 Vaal","doi":"10.1046/j.1439-0280.2002.02012.x","DOIUrl":"10.1046/j.1439-0280.2002.02012.x","url":null,"abstract":"<p>An outbreak on apple permitted a closer look at <i>Coenorhinus pauxillus</i> (Germar) (Col.: Attelabidae). The adult weevils emerge from mid-March onwards and attack the first unfolding leaves. Infested leaves drop when the larvae are in the 1<sup>st</sup> or 2<sup>nd</sup> instar, and it takes a further 4 weeks before the larvae are ready to pupate. Rearing of field-collected eggs and larvae is described. Leaf decomposition is an essential condition for pupation, as the fully-grown larvae do not leave their mine actively. Part of the population pupates more or less immediately and produces adult weevils in autumn. However, up to 70 % of the weevils remain in prolonged diapause; their pupation does not take place before the summer of the following year. Damage by the weevil involves not only the loss of leaves of flower clusters and shoots, but also feeding damage to young fruits. Two parasitoids were found. Observations indicate that 3 – 4 subsequently more abundant generations of <i>Anaphes brachygaster</i> Debauche (Hym.: Mymaridae) develop in eggs of <i>C. pauxillus. Probles brevicornis</i><span>Horstmann</span> (Hym.: Ichneumonidae, Tersilochinae) emerges in May and oviposits in young weevil larvae on the tree. The parasitoid does not develop into a pupa until its host starts pupating. The outbreak of apple leaf cutter did not decline over three years, but did not spread into adjacent plantings.</p>","PeriodicalId":100103,"journal":{"name":"Anzeiger für Sch?dlingskunde","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2002-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1046/j.1439-0280.2002.02012.x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122613312","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Hausrattennachweise (Rattus rattus L.) in bewohnten Wohnh?usern in Magdeburg","authors":"U. Mielke","doi":"10.1046/j.1439-0280.2002.02003.x","DOIUrl":"10.1046/j.1439-0280.2002.02003.x","url":null,"abstract":"<p>Storehouses and mills in the Magdeburg region are known to be infested with black (ore house) rats. In residential buildings, however, house rats (<i>Rattus rattus</i> L.) have not been detected for at least 20 years. Therefore, it was of much interest for the expert to note that this rat species had been seen in two occupied residential buildings (a refurbished old building and a terraced house). It has been suspected for a longer time that black rats can be found in certain residential buildings in towns or even cities.</p>","PeriodicalId":100103,"journal":{"name":"Anzeiger für Sch?dlingskunde","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2002-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1046/j.1439-0280.2002.02003.x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134262634","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. Zabel , B. Manojlovic , S. Rajkovic , S. Stankovic , And M. Kostic
{"title":"Effect of Neem extract on Lymantria dispar L. (Lepidoptera: Lymantriidae) and Leptinotarsa decemlineata Say. (Coleoptera: Chrysomelidae)","authors":"A. \u0000 Zabel\u0000 \u0000 , B. \u0000 Manojlovic\u0000 \u0000 , S. \u0000 Rajkovic\u0000 \u0000 , S. \u0000 Stankovic\u0000 \u0000 , And M. \u0000 Kostic","doi":"10.1046/j.1439-0280.2002.02006.x","DOIUrl":"https://doi.org/10.1046/j.1439-0280.2002.02006.x","url":null,"abstract":"<p>High antifeedancy and low toxicity of the plant preparation Neem (azadirachtin), on the gypsy moth, <i>Lymantria dispar</i> L. larvae were proved under laboratory conditions. A high index of Neem antifeedancy was confirmed in all tested concentrations.Under laboratory conditions the Neem had satisfying antifeedancy on <i>Leptinotarsa decemlineata</i> Say third instar larvae too. Field experiments also proved that the foliage protective effect of Neem was very significant.Experiments showed that some antifeedants or repellents, such as Neem, should control olygophagous (<i>L. decemlineata</i>, Coleoptera) insects as well as very polyphagous insects such as <i>L. dispar</i> (Lepidoptera).As a biological, plant-derived preparation, Neem could be suitable for integrated pest management (IPM) programs, especially in small orchards, parks, and tree rows in urban environments and on small private gardens.</p>","PeriodicalId":100103,"journal":{"name":"Anzeiger für Sch?dlingskunde","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2002-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1046/j.1439-0280.2002.02006.x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91794648","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Survival and food choice of the grey field slug (Deroceras reticulatum) on three different seed types under laboratory conditions","authors":"J. Gebauer","doi":"10.1046/j.1439-0280.2002.02001.x","DOIUrl":"https://doi.org/10.1046/j.1439-0280.2002.02001.x","url":null,"abstract":"<p>In Ireland, the grey field slug (<i>Deroceras reticulatum</i>) is the predominant slug pest species in arable crops. It can cause enormous damage, but the knowledge about its feeding biology is limited.Adult species were reared under laboratory conditions, and the survival, feeding activity, and weight change of slugs when feed on maize, peas, or wheat seeds were investigated. An especially high mortality was experienced in the wheat treatment. It was hypothesised that the high mortality was due to a <i>Fusarium</i> species, however, a <i>Fusarium</i> infection of the wheat seeds was not confirmed. The weight change of the slugs was very variable due to a high egg production of some slugs.A second experiment examined the food choice and feeding activity of <i>D. reticulatum</i> when offered a choice of the three seed types. Most of the slugs preferred to feed on a mixture of seeds, but the highest feeding activity was recorded on the pea seeds.</p>","PeriodicalId":100103,"journal":{"name":"Anzeiger für Sch?dlingskunde","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2002-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1046/j.1439-0280.2002.02001.x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91794649","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The thermal constant for timing the emergence of the Red Palm Weevil, Rhynchophorus ferrugineus (Oliv.) (Coleoptera, Curculionidae)","authors":"H. S. Salama, M. K. Hamdy, M. Magd El-Din","doi":"10.1046/j.1439-0280.2002.02004.x","DOIUrl":"10.1046/j.1439-0280.2002.02004.x","url":null,"abstract":"<p>The pupal duration of the red palm weevil, <i>Rhynchophorus ferrugineus</i> (Oliv.) at two different temperatures revealed that the thermal threshold is – 2.3 °C, while the thermal constant is 423 degree days. Around 20.7 cycles of weevil emergence per year have been predicted in Egypt. A temperature between 44 – 45 °C was found to be the higher threshold at which the pupae are killed. The heat units required for the pupal development were utilized to predict the dates of adult emergence throughout the year.</p>","PeriodicalId":100103,"journal":{"name":"Anzeiger für Sch?dlingskunde","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2002-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1046/j.1439-0280.2002.02004.x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123949830","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Studies on insects and mites causing galls on the leaves of common ash Fraxinus excelsior L. in the Ojców National Park in Poland","authors":"Małgorzata Skrzypczyńska","doi":"10.1046/j.1439-0280.2002.02002.x","DOIUrl":"https://doi.org/10.1046/j.1439-0280.2002.02002.x","url":null,"abstract":"<p>The occurrence frequency of galls caused by insects and mites on the leaves of <i>Fraxinus excelsior</i> L. was investigated, based on leaf samples collected in the Ojców National Park in 2000 – 2001. The species composition of galls was identical in two consecutive years. Galls were caused by 5 species a total of 2881 galls. The most numerous species was <i>Dasineura fraxinea</i> (Kieffer) in both years.Index of occurrence frequency and Agrell's index of species co-existence have been calculated. This index reached the highest values in case of <i>Dasineura fraxinea</i> and <i>Vasates fraxini</i> (Nalepa) in 2000 as well as <i>D. fraxinea</i> and <i>Psyllopsis fraxini</i> (L.) in 2001.</p>","PeriodicalId":100103,"journal":{"name":"Anzeiger für Sch?dlingskunde","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2002-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1046/j.1439-0280.2002.02002.x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91794651","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Increase of Russian wheat aphid, Diuraphis noxia (Kurdj.) in hot and dry weather (2000) (Hom., Aphididae)","authors":"P. \u0000 Starý\u0000 \u0000 , Hana \u0000 Lukášová","doi":"10.1046/j.1439-0280.2002.02007.x","DOIUrl":"https://doi.org/10.1046/j.1439-0280.2002.02007.x","url":null,"abstract":"<p>Two hot and dry weather periods during mid-spring and early summer caused severe drought-stress to barley groves in many districts of the Czech Republic in 2000. Although not generally taken into consideration as an injury-increasing factor, the Russian wheat aphid (= RWA), <i>Diuraphis noxia</i> (Kurdj.), was discovered to contribute significantly to injury in the ripening stage of spring barley as well as to the substantial decrease of yield (up to 30 – 40 % of the calculated mean, in some districts). RWA increased considerably not only in the lowland banker areas but also in the higher altitudes, values in the latter case then manifesting those found in the lowland banker areas in the previous years.</p>","PeriodicalId":100103,"journal":{"name":"Anzeiger für Sch?dlingskunde","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2002-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1046/j.1439-0280.2002.02007.x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90135148","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. M. Matter, M. A. Gesraha, A. A. I. Ahmed, N. A. Farag
{"title":"Impact of neem and chinaberry fruit extracts on the pest/parasitoid (Pieris rapae/Hyposoter ebeninus) interactions","authors":"M. M. Matter, M. A. Gesraha, A. A. I. Ahmed, N. A. Farag","doi":"10.1046/j.1439-0280.2002.01034.x","DOIUrl":"https://doi.org/10.1046/j.1439-0280.2002.01034.x","url":null,"abstract":"<p>A new technique was performed to simulate exposure of the host <i>Pieris rapae</i> larvae to both botanical treatment and the parasitoid <i>Hyposoter eheninus</i> in different sequences. It was found that: host larvae subjected to both parasitoid and 1 % neem treatment showed significant or insignificant reductions both in pupal formation as well as adult emergence percentages when treatment preceded or followed parasitism, respectively. Both neem treatments revealed significant prolongation in the development of unparasitized and parasitized larvae (on average 4 to 5 days delay), whereas chinaberry caused significant prolongation only among parasitized larvae (on average 2.7 days delay in egg-larval duration). Fate of parasitism among untreated hosts was found to be faster than among neem-treated ones. Parasitism percentages among 1 and 0.5 % neem-treated third instar host larvae held 7 days before parasitism reached 3 and 2 times that achieved among those reared on untreated diet for the same period, respectively.It was concluded that prolongation of the preferred target instars of the host, due to neem treatments, increased the chance for parasitism. Nevertheless, treatment with neem at the LC<sub>50</sub> level exhibited a great reduction in parasitoid progeny. However, a lower concentration (LC<sub>25</sub>) could reasonably potentiate parasitism without drastic losses in parasitoid emergence.</p>","PeriodicalId":100103,"journal":{"name":"Anzeiger für Sch?dlingskunde","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2002-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1046/j.1439-0280.2002.01034.x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91794650","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
C. Grimm, H. Schmidli, F. Bakker, K. Brown, P. Campbell, M. Candolfi, P. Chapman, E. G. Harrison, M. Mead-Briggs, R. Schmuck, A. Ufer
{"title":"Use of standard toxicity tests with Typhlodromus pyri and Aphidius rhopalosiphi to establish a dose-response relationship","authors":"C. Grimm, H. Schmidli, F. Bakker, K. Brown, P. Campbell, M. Candolfi, P. Chapman, E. G. Harrison, M. Mead-Briggs, R. Schmuck, A. Ufer","doi":"10.1046/j.1439-0280.2001.01013.x","DOIUrl":"https://doi.org/10.1046/j.1439-0280.2001.01013.x","url":null,"abstract":"<p>The existing standardised test systems for assessing the toxicity of crop protection products to the non-target arthropods <i>Typhlodromus pyri</i> (Acari: Phytoseiidae) and <i>Aphidius rhopalosiphi</i> (Hymenoptera: Aphidiidae) are limit tests designed to compare a single-use rate of the product with a water control. The suitability of these test systems for generating dose-response data as required for refined ecotoxicological risk assessment was evaluated. Data on dose-response toxicity of crop protection products to <i>T. pyri</i> and <i>A. rhopalosiphi</i> were generated under worst-case laboratory and to <i>T. pyri</i> under extended laboratory conditions and analysed using the standard Probit method, a logistic regression, a generalised Probit analysis, and the moving average-angle method in order to calculate the LR<sub>50</sub>-values (application rate killing 50 % of the exposed organisms). The fit of the models, the precision of the resulting LR<sub>50</sub> values, and the required minimum number of replicates were compared. In 85 % of the studies, at least one of the statistical methods led to satisfactory results. The moving average-angle method was the most widely applicable method. The results show that the existing guidelines can be used to perform dose-response tests. Implications for risk assessment are discussed.</p>","PeriodicalId":100103,"journal":{"name":"Anzeiger für Sch?dlingskunde","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2002-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1046/j.1439-0280.2001.01013.x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71977997","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}