Quantitative relation between absolute and relative measures of Cephus fumipennis [Hymenoptera: Cephidae] densities

• Autorzy: Zhao L

Warianty tytułu

PL

Ilosciowe zaleznosci pomiedzy bezwzglednymi i wzglednymi miarami zageszczenia populacji Cephus fumipennis

• Języki publikacji: EN

Abstrakty

EN

Cephus fumipennis Eversmann is a key insect pest of wheat crops in Qinghai, China. Its field population densities were surveyed by using both the back-loaded insect vacuum and a sweep net. Mean densities in township-level were calculated and a quantitative relation, ỹ =0,664 + 0,214 x, was established between the two sampling methods. The empirical relationship may be applicable in density monitoring and Integrated Pest Management program of the insect.

PL

Cephus fumipennis Eversmann należy do głównych gatunków szkodników obniżających plony pszenicy w prowincji Qinghai, w Chinach. Wykorzystano dwie metody określenia zagęszczenia jego populacji w warunkach polowych przy pomocy: plecakowego ekshaustora ciśnieniowego i standardowego czerpaka entomologicznego. Obliczono średnie wartości pomiarów dla poszczególnych gmin i zależności pomiędzy nimi jako: ỹ = 0.664 + 0.214x. Wyznaczone empiryczne zależności powinny być wykorzystane w monitoringu zagęszczenia populacji ździeblarza jako podstawy programu integrowanej ochrony roślin.

Słowa kluczowe

EN

quantitative relation; absolute measurement; relative measurement; Cephus fumipennis; Hymenoptera; Cephidae; population density; field survey; sampling method

• Wydawca: -
• Czasopismo: Journal of Plant Protection Research
• Rocznik: 2006
• Tom: 46
• Numer: 4
• Opis fizyczny: p.397-402,fig.,ref.

Twórcy

autor

Zhao L

• Shaanxi University of Technology, Chaoyang Road Hanzhong, Shaanxi 723001, China

Bibliografia

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