Table 5 Suppression of insect pests through allelopathy
Allelopathic source and application
rate
Insect pests suppressed
Mortality
(%)
References
Kalonji (Nigella sativa L.) oil
extract (10% concentration)
Red flour beetle
(Tribolium castaneum;
Coleoptera:
Tenebrionidae)
48.0
repellency
against
grubs
[161]
Clove [Syzygium aromaticum (L.)
Merr. et Perry)] oil extract (10%
concentration)
Red flour beetle
47.5
repellency
against
grubs
Olive oil extract (10%
concentration)
Red flour beetle
46.0
repellency
against
grubs
Neem leaf powder (100 g in 1 L
water)
Asian citrus psyllid
(Diaphorina citri
Kuwayama) nymphs
31.5
[162]
Neem leaf powder (100 g in 1 L
water)
Asian citrus psyllid adults
26.1
Datura (Datura alba Nees) leaf
powder (100 g in 1 L water)
Asian citrus psyllid
nymphs
31.5
Datura leaf powder (100 g in 1 L
water)
Asian citrus psyllid adults
20.8
Fig-leaf goosefoot (Chenopodium
ficifolium Sm.) ethanol extract
(5000 mg mL
À1
)
Aphid (Aphis gossypii
Glover)
86
[163]
California pepper tree (Schinus
molle Rev L.) ethanol extract (4.7%
w/v)
Elm leaf beetle
(Xanthogaleruca luteola
Muller)
92
[164]
Birbira (Millettia ferruginea
Hochst.) (seed crude extract)
Macrotermes termites
93–100
[165]
Neem oil volatiles
Corcyra cephalonica St.
26
[166]
Neem seed kernels water extract
(2%)
Flower thrip (Taeniothrips
sjostedti Trybom)
54
[167]
Fig-leaf goosefoot methanol extract
(5000 mg mL
À1
)
Aphid
83
[163]
Fig-leaf goosefoot n-Hexane extract
(5000 mg mL
À1
)
Aphid
54
Birbira seed crude extract
Sorghum chaffer
(Pachnoda interrupta
Oliver)
45–60
[165]
Eucalyptus (Eucalyptus
camaldulensis L.) oil volatiles
Corcyra cephalonica St.
67–78
[166]
Hot pepper (Capsicum annuum L.)
fruit water extract (2%)
Flower thrip
54
[167]
Hot pepper fruit water extract (2%)
Pod borer (Heliothis
armigera Hb.)
31
California pepper tree water extract
(5.6% w/v)
Elm leaf beetle
28
[164]
(continued)
562
A. Nawaz et al.