ZOLTÁN IMREI, MIKLÓS TÓTH

Plant Protection Institute, Agricultural Research Centre, Hungarian Academy of Sciences, Budapest, Hungary

International Conference on the German Diabrotica Research Program,Berlin, 14-16 November, 2012

The place of different sampling methods

Absolute methods (simple, easier to correlate)

Relative methods (at low population densities, less labourintensive, often closer to every-day practice)

A combination of different methods is optimal

A relative method…

… trapping with lures

Diabrotica species Absolute structure Chemical Reference

D. balteata 6R,12R6,12-dimethyl-

pentadecane-2-on

McLaughlin et

al. (1991)

D. undecimpunctata

howardi

D. undecimpunctata

undecimpunctata

D. undecimpunctata

duodecimpunctata H

10R (++)

10R (++)

Unknown

10-methyl-2-tridecanon

Guss et al.

(1983a)

D. virgifera virgifera

D. virgifera zeae

D. barberi

2R,8R (++), 2S,8R (+)

2R,8R (++), 2S,8R (+)

2R,8R (++), 2S,8R (-),

2S,8S (--)

(8-methyl-2-

decyl)propionate

Guss et al.

(1982), Guss et

al. (1984),

Guss et al.

(1985)

D. longicornis

D. lemniscata

D. Porracea

2S,8R (++), 2R,8R (--)

2S,8R (++), 2R,8R (+)

2S,8R (++)

(8-methyl-2-

decyl)propionate

Guss et al.

(1982), Guss et

al. (1984),

Krysan et al.

(1986)

D. cristata 2S,8R (++)(8-metihyl-2-

deciy)acetate

Guss et al.

(1983b)

mea

n c

atc

h (

+S

E)

0

10

20

30

40

50

60

70

a b a a a * b* * * *

Szekszárd, Tolna county, Hungary July 20 - August 23, 2001.

Total caught in test:

1764 beetles

Bait composition:

rac-8-methyldecane-2-yl propanoate

rac-8-methyldecane-2-yl acetate

rac-8-methyldecane-2-one

(+)-8-methyldecane

(+)-8-methyl-1-decene

CLICK BEETLE AND WIREWORM MONITORING

• PHEROMONE TRAPS pest species occure inEUROPE• ONE inspection plus maintanance!!• 2-3 pest species/site

• Wireworms could be trapped in areas of high pheromone trap catches

•Preliminary tresholdsare available

PAL for Diabrotica

males

Plant Protection Institute,Centre for Agricultural Research,Hungarian Academy of Sciences,

Budapest, HUNGARYe-mail: csalomon@julia-nki.hu

internet: www.julia-nki.hu/traps

VARb3k for Tropinota

(Epicometis)KLPflor+ for Diabrotica

females

RAG for many

moths

VARL+ for

noctuids

VARb3 for Cossus

or Anomala

PALz for

Rhagoletis

TAL for

Bothynoderes