Zur Prognose der Zuckerrüben‐Großschädlinge in Ungarn<sup>1</sup>

Manninger, Gebhard

doi:10.1111/j.1439-0418.1967.tb03854.x

Cited by 2 publications

(4 citation statements)

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“…The researched phenology of SBW in Croatia confirmed similarity to the results on life cycle investigated in neighbouring countries; Hungary, Romania and Serbia (Manninger, 1967; Petruha, 1971; Čamprag, 1984).…”

Section: Resultssupporting

confidence: 82%

“…7). The phenology is similar to that reported from neighbouring countries (Serbia, Hungary, Romania: Manninger, 1967; Petruha, 1971; Čamprag, 1984). We would expect this because the climatic conditions are similar in these countries.…”

Section: Discussionsupporting

confidence: 85%

“…Steiner (1936) reported a period of 133 days. In Romania, the development lasts from 70 to 82 days (Petruha, 1971); in Bulgaria, it is about 75 days (Bogdanov, 1965); in Hungary, it is about 3 months (Manninger, 1967); and in the area of Vojvodina, it ranges from 2.5 to 3.5 months, but is usually about 3 months (Čamprag, 1984).…”

Section: Discussionmentioning

confidence: 99%

“…A threshold of 5°C for the soil temperature at 10 cm depth was used, since many authors have reported that the first adults can be observed when the soil temperature at 5–10 cm rises to between 6 and 10°C (Pintér, 1953; Manninger, 1967; Čamprag, 1984; Maceljski, 2002). The calculation was done in early spring when the temperatures were not too high, and no upper threshold was applied.…”

Section: Methodsmentioning

confidence: 99%

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Phenology of the sugar beet weevil,Bothynoderes punctiventrisGermar (Coleoptera: Curculionidae), in Croatia

Drmić

Čačija

Gašparić

et al. 2018

Bull. Entomol. Res.

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The sugar beet weevil (SBW), Bothynoderes punctiventris Germar, 1824, is a significant pest in most of Eastern Europe. Here, the SBW is described and its seasonal activity characterized, in terms of its different developmental stages in relation to Julian days (JDs), degree-day accumulations (DDAs), and precipitation, as a key to improving monitoring and forecasting of the pest. The phenology and population characteristics of SBW were investigated in sugar beet fields in eastern Croatia over a 4-year period (2012–2015). By using the degree-day model (lower development threshold of 5°C, no upper development threshold, biofix 1 January), the first emergence of overwintering adults was determined as becoming established when the DDA reached 20. The adult emergence was completed when the DDA reached 428. SBW males emerged first, following which the females dominated the adult population. Overwintering adults were present in the field until early July. In August, adults of the offspring generation began to appear. The eggs laid by the overwintering generation required, on average, 10–15 days to develop into larvae; however, eggs were found in soil samples over a period of 102 days (between JDs 112 and 214). Larvae were present in the soil samples over a period of a maximum of 143 days (the first larvae were established on JD 122 and the last one on JD 265), and pupae were established in the soil over a period of 102 days (between JDs 143 and 245). This study provides important data for understanding SBW population dynamics and developing potential population dynamic models for pest forecasting on a regional scale.

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Section: Resultssupporting

confidence: 82%

Section: Discussionsupporting

confidence: 85%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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