Table 2.4
Functional response type and parameters of acarophagous lady beetle, Stethorus gilvifrons
to different mite species
Predator species
Prey species
Type
Search rate (h
À1
) or b
(type III)
Handling time
(h)
Arena
Study
Stethorus gilvifrons
(Female)
Tetranychus
turkestani
III
0.0012
0.415
Cowpea leaf disc
Sohrabi and
Shishehbor (2007)
Stethorus gilvifrons
(Female)
Oligonychus
afrasiaticus
II
0.085
0.138
Petri Dish
Matin et al. (2010)
Stethorus gilvifrons
(1st
instar larvae)
Eutetranychus
orientalis
II
0.065
Æ 0.10
0.207
Æ 0.036 Castor bean leaf arena
(16 cm
2
)
Imani and Shishehbor
(2011)
Stethorus gilvifrons
(2nd
instar larvae)
Eutetranychus
orientalis
II
0.089
Æ 0.014
0.166
Æ 0.029 Castor bean leaf arena
(16 cm
2
)
Imani and Shishehbor
(2011)
Stethorus gilvifrons
(3rd
instar larvae)
Eutetranychus
orientalis
II
0.143
Æ 0.033
0.150
Æ 0.029 Castor bean leaf arena
(16 cm
2
)
Imani and Shishehbor
(2011)
Stethorus gilvifrons
(4th
instar larvae)
Eutetranychus
orientalis
II
0.125
Æ 0.028
0.134
Æ 0.034 Castor bean leaf arena
(16 cm
2
)
Imani and Shishehbor
(2011)
Stethorus gilvifrons
(female) Eutetranychus
orientalis
II
0.046
Æ 0.004
0.082
Æ 0.02
Castor bean leaf arena
(16 cm
2
)
Imani and Shishehbor
(2011)
Stethorus gilvifrons
Eotetranychus hirsti
(Eggs)
II
0.13
0.196
Petri Dish
Sharifnia (2012)
Stethorus gilvifrons
Eotetranychus hirsti
(Female)
II
0.14
0.193
Petri Dish
Sharifnia (2012)
Stethorus gilvifrons
Tetranychus urticae
II
0.038
0.139
Not mentioned- 15
C
Mehrkhou et al. (2008)
Stethorus gilvifrons
Tetranychus urticae
II
0.053
0.053
Not mentioned- 35
C
Mehrkhou et al. (2008)
2 Lady Beetles; Lots of Efforts but few Successes
65