An experimental study was carried out in pots to investigate the activity of
Nemathorin, natural ... more An experimental study was carried out in pots to investigate the activity of Nemathorin, natural product and biopesticides against root-knot nematodes (RKNs) on tomatoes. Fosthiazate and abamectin proved to be the most effective treatments which suppressed the RKN population by 82.1%. Furthermore, arbuscular mycorrhizal fungus 2 (AMF2) was the superior treatment that reduced galls/root system followed by abamectin with the values of 72.5% and 67.2%, respectively. In addition, fosthiazate, cadusafos and crustacean2 gave the highest increase in the root length with the values of 55.8%, 54.6% and 54.6%, respectively. AMF2 was the most effective treatment which increases the root weight by 43.9%, while azadirachtin decreased the root weight by 12.2% compared to untreated check. AMF2, cadusafos and crustacean2 not only increased the shoot length but also increased the shoot weight. Azadirachtin recorded the minimum increase in shoot system length and weight.
Abamectin, fosthiazate and mycorrhiza (Glomus intraradices) and their combinations were evaluated... more Abamectin, fosthiazate and mycorrhiza (Glomus intraradices) and their combinations were evaluated against the root-knot nematode (Meloidogyne incognita) populations and galls formation on tomato plants cv. Super strain B under greenhouse conditions. The results indicated that fosthiazate and abamectin proved to be the most effective against the root-knot populations / 250g soil with 74.7 and 74% reductions, respectively. Abamectin alone and fosthiazate in the half dose mixed with G. intraradices which recorded reduction in galls formation by 60.7 and 59.7%, respectively. All treatments induced the growth of the shoot system, and the highest increase in shoot length (174.9%) was recorded with abamectin, while G. intraradices alone recorded the highest increase in shoot weight (56.8%). Abamectin in the half dose combined with the fungus G. intraradices produced the least increase in shoot length and weight.
An experimental study was carried out in pots to investigate the activity of Nemathorin, natural
... more An experimental study was carried out in pots to investigate the activity of Nemathorin, natural product and biopesticides against root-knot nematodes (RKNs) on tomatoes. Fosthiazate and abamectin proved to be the most effective treatments which suppressed the RKN population by 82.1%. Furthermore, arbuscular mycorrhizal fungus 2 (AMF2) was the superior treatment that reduced galls/root system followed by abamectin with the values of 72.5% and 67.2%, respectively. In addition, fosthiazate, cadusafos and crustacean2 gave the highest increase in the root length with the values of 55.8 % and 54.6%, respectively. AMF2 was the most effect54.6 ،% ive treatment which increases the root weight by 43.9%, while azadirachtin decreased the root weight by 12.2% compared to untreated check. AMF2, cadusafos and crustacean2 not only increased the shoot length but also increased the shoot weight. Azadirachtin recorded the minimum increase in shoot system length and weight.
The nematicidal activity of four molecular weights (2.27 × 10 5, 3.60 × 105, 5.97 × 105, and 9.47... more The nematicidal activity of four molecular weights (2.27 × 10 5, 3.60 × 105, 5.97 × 105, and 9.47 × 105 g/mol) of a biopolymer chitosan was assayed against the root-knot nematode, Meloidogyne incognita, in vitro and in pot experiments. In laboratory assays, the nematode mortality was significantly influenced by exposure times and chitosan molecular weight. Low molecular weight chitosan (2.27 × 10 5 g/mol) was the most effective in killing the nematode with EC 50 of 283.47 and 124.90 mg/l after 24 and 48 h of treatment, respectively. In a greenhouse bioassay, all the compounds mixed in soil at one- and five-fold concentrations of the LC 50 value significantly reduced population, egg mass, and root galling of tomato seedlings compared with the untreated control. In general, the nematicidal activity of these compounds was increased dramatically with a decrease in the molecular weight. The results suggest that the chitosan at low molecular weight may serve as a natural nematicide.
An experimental study was carried out in pots to investigate the activity of
Nemathorin, natural ... more An experimental study was carried out in pots to investigate the activity of Nemathorin, natural product and biopesticides against root-knot nematodes (RKNs) on tomatoes. Fosthiazate and abamectin proved to be the most effective treatments which suppressed the RKN population by 82.1%. Furthermore, arbuscular mycorrhizal fungus 2 (AMF2) was the superior treatment that reduced galls/root system followed by abamectin with the values of 72.5% and 67.2%, respectively. In addition, fosthiazate, cadusafos and crustacean2 gave the highest increase in the root length with the values of 55.8%, 54.6% and 54.6%, respectively. AMF2 was the most effective treatment which increases the root weight by 43.9%, while azadirachtin decreased the root weight by 12.2% compared to untreated check. AMF2, cadusafos and crustacean2 not only increased the shoot length but also increased the shoot weight. Azadirachtin recorded the minimum increase in shoot system length and weight.
Abamectin, fosthiazate and mycorrhiza (Glomus intraradices) and their combinations were evaluated... more Abamectin, fosthiazate and mycorrhiza (Glomus intraradices) and their combinations were evaluated against the root-knot nematode (Meloidogyne incognita) populations and galls formation on tomato plants cv. Super strain B under greenhouse conditions. The results indicated that fosthiazate and abamectin proved to be the most effective against the root-knot populations / 250g soil with 74.7 and 74% reductions, respectively. Abamectin alone and fosthiazate in the half dose mixed with G. intraradices which recorded reduction in galls formation by 60.7 and 59.7%, respectively. All treatments induced the growth of the shoot system, and the highest increase in shoot length (174.9%) was recorded with abamectin, while G. intraradices alone recorded the highest increase in shoot weight (56.8%). Abamectin in the half dose combined with the fungus G. intraradices produced the least increase in shoot length and weight.
An experimental study was carried out in pots to investigate the activity of Nemathorin, natural
... more An experimental study was carried out in pots to investigate the activity of Nemathorin, natural product and biopesticides against root-knot nematodes (RKNs) on tomatoes. Fosthiazate and abamectin proved to be the most effective treatments which suppressed the RKN population by 82.1%. Furthermore, arbuscular mycorrhizal fungus 2 (AMF2) was the superior treatment that reduced galls/root system followed by abamectin with the values of 72.5% and 67.2%, respectively. In addition, fosthiazate, cadusafos and crustacean2 gave the highest increase in the root length with the values of 55.8 % and 54.6%, respectively. AMF2 was the most effect54.6 ،% ive treatment which increases the root weight by 43.9%, while azadirachtin decreased the root weight by 12.2% compared to untreated check. AMF2, cadusafos and crustacean2 not only increased the shoot length but also increased the shoot weight. Azadirachtin recorded the minimum increase in shoot system length and weight.
The nematicidal activity of four molecular weights (2.27 × 10 5, 3.60 × 105, 5.97 × 105, and 9.47... more The nematicidal activity of four molecular weights (2.27 × 10 5, 3.60 × 105, 5.97 × 105, and 9.47 × 105 g/mol) of a biopolymer chitosan was assayed against the root-knot nematode, Meloidogyne incognita, in vitro and in pot experiments. In laboratory assays, the nematode mortality was significantly influenced by exposure times and chitosan molecular weight. Low molecular weight chitosan (2.27 × 10 5 g/mol) was the most effective in killing the nematode with EC 50 of 283.47 and 124.90 mg/l after 24 and 48 h of treatment, respectively. In a greenhouse bioassay, all the compounds mixed in soil at one- and five-fold concentrations of the LC 50 value significantly reduced population, egg mass, and root galling of tomato seedlings compared with the untreated control. In general, the nematicidal activity of these compounds was increased dramatically with a decrease in the molecular weight. The results suggest that the chitosan at low molecular weight may serve as a natural nematicide.
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Papers by Haroon Salah
Nemathorin, natural product and biopesticides against root-knot nematodes
(RKNs) on tomatoes. Fosthiazate and abamectin proved to be the most
effective treatments which suppressed the RKN population by 82.1%.
Furthermore, arbuscular mycorrhizal fungus 2 (AMF2) was the superior
treatment that reduced galls/root system followed by abamectin with the values
of 72.5% and 67.2%, respectively. In addition, fosthiazate, cadusafos and
crustacean2 gave the highest increase in the root length with the values of
55.8%, 54.6% and 54.6%, respectively. AMF2 was the most effective treatment
which increases the root weight by 43.9%, while azadirachtin decreased the
root weight by 12.2% compared to untreated check. AMF2, cadusafos and
crustacean2 not only increased the shoot length but also increased the shoot weight. Azadirachtin recorded the minimum increase in shoot system length and
weight.
the root-knot nematode (Meloidogyne incognita) populations and galls formation on tomato plants cv. Super strain B
under greenhouse conditions. The results indicated that fosthiazate and abamectin proved to be the most effective
against the root-knot populations / 250g soil with 74.7 and 74% reductions, respectively. Abamectin alone and
fosthiazate in the half dose mixed with G. intraradices which recorded reduction in galls formation by 60.7 and 59.7%,
respectively. All treatments induced the growth of the shoot system, and the highest increase in shoot length (174.9%)
was recorded with abamectin, while G. intraradices alone recorded the highest increase in shoot weight (56.8%).
Abamectin in the half dose combined with the fungus G. intraradices produced the least increase in shoot length and
weight.
product and biopesticides against root-knot nematodes (RKNs) on tomatoes. Fosthiazate and
abamectin proved to be the most effective treatments which suppressed the RKN population by
82.1%. Furthermore, arbuscular mycorrhizal fungus 2 (AMF2) was the superior treatment that
reduced galls/root system followed by abamectin with the values of 72.5% and 67.2%, respectively.
In addition, fosthiazate, cadusafos and crustacean2 gave the highest increase in the root length with
the values of 55.8 % and 54.6%, respectively. AMF2 was the most effect54.6 ،% ive treatment
which increases the root weight by 43.9%, while azadirachtin decreased the root weight by 12.2%
compared to untreated check. AMF2, cadusafos and crustacean2 not only increased the shoot length
but also increased the shoot weight. Azadirachtin recorded the minimum increase in shoot system
length and weight.
a biopolymer chitosan was assayed against the root-knot nematode, Meloidogyne incognita, in vitro and in pot
experiments. In laboratory assays, the nematode mortality was significantly influenced by exposure times and
chitosan molecular weight. Low molecular weight chitosan (2.27 × 10 5 g/mol) was the most effective in killing
the nematode with EC
50 of 283.47 and 124.90 mg/l after 24 and 48 h of treatment, respectively. In a greenhouse
bioassay, all the compounds mixed in soil at one- and five-fold concentrations of the LC 50 value significantly
reduced population, egg mass, and root galling of tomato seedlings compared with the untreated control. In
general, the nematicidal activity of these compounds was increased dramatically with a decrease in the molecular
weight. The results suggest that the chitosan at low molecular weight may serve as a natural nematicide.
Nemathorin, natural product and biopesticides against root-knot nematodes
(RKNs) on tomatoes. Fosthiazate and abamectin proved to be the most
effective treatments which suppressed the RKN population by 82.1%.
Furthermore, arbuscular mycorrhizal fungus 2 (AMF2) was the superior
treatment that reduced galls/root system followed by abamectin with the values
of 72.5% and 67.2%, respectively. In addition, fosthiazate, cadusafos and
crustacean2 gave the highest increase in the root length with the values of
55.8%, 54.6% and 54.6%, respectively. AMF2 was the most effective treatment
which increases the root weight by 43.9%, while azadirachtin decreased the
root weight by 12.2% compared to untreated check. AMF2, cadusafos and
crustacean2 not only increased the shoot length but also increased the shoot weight. Azadirachtin recorded the minimum increase in shoot system length and
weight.
the root-knot nematode (Meloidogyne incognita) populations and galls formation on tomato plants cv. Super strain B
under greenhouse conditions. The results indicated that fosthiazate and abamectin proved to be the most effective
against the root-knot populations / 250g soil with 74.7 and 74% reductions, respectively. Abamectin alone and
fosthiazate in the half dose mixed with G. intraradices which recorded reduction in galls formation by 60.7 and 59.7%,
respectively. All treatments induced the growth of the shoot system, and the highest increase in shoot length (174.9%)
was recorded with abamectin, while G. intraradices alone recorded the highest increase in shoot weight (56.8%).
Abamectin in the half dose combined with the fungus G. intraradices produced the least increase in shoot length and
weight.
product and biopesticides against root-knot nematodes (RKNs) on tomatoes. Fosthiazate and
abamectin proved to be the most effective treatments which suppressed the RKN population by
82.1%. Furthermore, arbuscular mycorrhizal fungus 2 (AMF2) was the superior treatment that
reduced galls/root system followed by abamectin with the values of 72.5% and 67.2%, respectively.
In addition, fosthiazate, cadusafos and crustacean2 gave the highest increase in the root length with
the values of 55.8 % and 54.6%, respectively. AMF2 was the most effect54.6 ،% ive treatment
which increases the root weight by 43.9%, while azadirachtin decreased the root weight by 12.2%
compared to untreated check. AMF2, cadusafos and crustacean2 not only increased the shoot length
but also increased the shoot weight. Azadirachtin recorded the minimum increase in shoot system
length and weight.
a biopolymer chitosan was assayed against the root-knot nematode, Meloidogyne incognita, in vitro and in pot
experiments. In laboratory assays, the nematode mortality was significantly influenced by exposure times and
chitosan molecular weight. Low molecular weight chitosan (2.27 × 10 5 g/mol) was the most effective in killing
the nematode with EC
50 of 283.47 and 124.90 mg/l after 24 and 48 h of treatment, respectively. In a greenhouse
bioassay, all the compounds mixed in soil at one- and five-fold concentrations of the LC 50 value significantly
reduced population, egg mass, and root galling of tomato seedlings compared with the untreated control. In
general, the nematicidal activity of these compounds was increased dramatically with a decrease in the molecular
weight. The results suggest that the chitosan at low molecular weight may serve as a natural nematicide.