Mansoura University, Faculty of Agriculture
Journal of Plant Protection and Pathology
2090-3677
2090-3758
4
5
2013
05
01
DISSIPATION OF PENDIMETHALIN BY Bacillus megaterium
463
472
EN
E.
B.
Abdel – Moteleb
Agric.Botany Dep., (Agric. Microbiology) Fac. of Agric., Kafrelsheikh Univ., 33516, Kafr El-Sheikh, Egypt.
Nahed
E.
Hasan
Pesticide Dept., Fac. of Agric., Kafr El-Sheikh Univ., 33516- Kafr Elsheikh, Egypt
10.21608/jppp.2013.87394
One strain of microorganisms was isolated from soil previously treated with pendimethalin using enrichment techniqueand identified as<em> Bacillus megaterium</em> (E22). The effect of pH and temperature on the growth ability of the tested strain was investigated. The results showed that the optimum pH and temperature for the growth of pendimethalin degrading strain were 7 and 30 °C, respectively. Some concentration of pendimethalinwas removed by<em> B. megaterium</em> remove from mineral liquid medium with half-life of 5.6 days. Pendimethalin half-life was 53.4 days in untreated mineral liquid medium as control. Also, there is no toxicity of pendimethalin detected on <em>Rhizobium leguminsarum</em> biovar viciae as test microorganism in the supernatant after 28 day of treatment with <em>B. megaterium</em>. The results suggest that bioremediation by <em>B. megaterium</em> isolate was considered to be effective method for detoxification of pendimethalin herbicidein aqueous media.
Pendimethalin,Soil,bioremediation,Phytotoxicity,seedling mortality
https://jppp.journals.ekb.eg/article_87394.html
https://jppp.journals.ekb.eg/article_87394_c11f2ce4e9eac4e88de55471b0b2d21e.pdf
Mansoura University, Faculty of Agriculture
Journal of Plant Protection and Pathology
2090-3677
2090-3758
4
5
2013
05
01
INSECTICIDAL ACTIVITY OF THREE PLANT EXTRACTS AGAINST Trogoderma granarium(Khapra beetle) IN WHEAT GRAINS WITH TOXICITY EVALUATION
473
483
EN
Sahar
I. A.
Ibrahim
Pesticides Dept., Fac.of Agric., Kafrelsheikh Univ., Egypt
10.21608/jppp.2013.87396
Extracts of three plant species were tested under laboratory conditions for their ability to protect wheat (<em>Triticum</em> spp.) grains against the insect <em>Trogoderma granarium</em> . The insect was reared and tested on whole wheat grains with respect to the larvae,pupae and adult’s mortality, and emergence.<em>. </em>Furthermore, the safety of the most effective plant extracts was evaluated with respect to biochemical changes in rats. The results revealed that <em>Chenopodium ambrosioides</em> followed by <em>Eucalyptus gluaca</em> extracts were the most effective against<em> T. granarium</em> with respect to insect mortality and progeny relative to the control. These extracts also showed low toxicity on treated rats relative to control with respect to biochemical changes . The results suggested that these extracts may be a safe alternative to insecticides
control,Stored products,safety,insect plant extracts, Khapra beetle
https://jppp.journals.ekb.eg/article_87396.html
https://jppp.journals.ekb.eg/article_87396_7bb941c855449500c2a5cbf12da76c18.pdf
Mansoura University, Faculty of Agriculture
Journal of Plant Protection and Pathology
2090-3677
2090-3758
4
5
2013
05
01
MANGEMENT OF MELOIDOGYNE INCOGNITA ON OKRA PLANTS USING NICKEL SULPHATE UNDER GREENHOUSE CONDITIONS.
485
492
EN
S.
B.
Gad
Nematology Res. Unit, Agric. Zool. Dept, Fac. Of Agric., Mansoura Univ. Egypt.
10.21608/jppp.2013.87397
Impact of five nickel sulphate concentrations i.e. 1, 2, 4, 8 and 16 ppm as soil drench in comparison with oxamyl on plant growth parameters of okra plant <em>(Abelmoschus esculentus</em>) cv. Hyper Doki 1 infected with <em>Meloidogyne</em> <em>incognita</em> and its development was evaluated under greenhouse conditions at 30±3ºC. Results revealed that all tested treatments improved okra plant growth characters and reduced nematode criteria as well. In general, a gradual decline of plant growth increase was detected by the increase of tested nickel sulphate concentrations that accompanied with high percentage increase in reduction of nematode criteria. Among tested nickel sulphate applications, one ppm significantly overwhelmed other treatments in improving plant growth parameters with values of 31.0, 38.0 and 5.3% for total plant length, fresh weight of the whole plant and shoot dry weight, respectively. Moreover, plant receiving 16 ppm / plant accomplished the highest reduction percentage in tested nematode parameters that averaged 82.1, 67.6 and 70.7%, for juveniles in soil, galls and eggmasses numbers, respectively. Meanwhile, oxamyl ranked first in suppressing nematode parameters with values of 94.2, 90.2 and 94.9% for nematode population (J<sub>2</sub>), galls and eggmasses numbers as well as fourth in the increment of plant growth criteria, respectively.
Nickel sulphate,okra plant,Oxamyl,Meloidogyne incognita
https://jppp.journals.ekb.eg/article_87397.html
https://jppp.journals.ekb.eg/article_87397_a09afa31795d91cfed2f3192a402cff4.pdf
Mansoura University, Faculty of Agriculture
Journal of Plant Protection and Pathology
2090-3677
2090-3758
4
5
2013
05
01
BIOLOGICAL ACTIVITY OF TWO CRUDE EXTRACTS FROM Bauhinia purpurea AGAINST Spodoptera littoralis (BOISD.)
493
507
EN
A.
M.
El-Sabrout
Applied Entomology Dept., Fac. of Agric., Univ. of Alexandria.
elsabroutahmed@yahoo.com
O.
El-Ansary
Applied Entomology Dept., Fac. of Agric., Univ. of Alexandria.
G.
G.
Gadelhak
Applied Entomology Dept., Fac. of Agric., Univ. of Alexandria.
Magda
H.
Salem.
Applied Entomology Dept., Fac. of Agric., Univ. of Alexandria.
10.21608/jppp.2013.87398
Effects of butanol and petroleum ether crude extracts of <em>Bauhinia purpurea</em> on <em>Sopdoptera littoralis</em> were studied by feeding method for the concentrations of 5, 10, 50 and 100 ppm. The results showed reduction in the pupae weight values of <em>S.littoralis</em>, these values were between 196.40 to 136.67 mg while it weighed 257- 260.33 mg in the control. The inhibition of the adult formation percentages were ranged between 43.33 to 93.33%. The fecundity, fertility and spermatophores numbers were studied and the mating possibilities were carried out for the adults resulted from the treated larvae with the previous tested concentrations of petroleum ether crude extract of <em>Bauhinia</em> and compared with the control. The numbers of eggs laid were reduced and ranged from zero to 285.13 eggs per female, while it was 1186.52 eggs per female in the control with hatchability percentages ranged from zero to 87.2%, while it was 97.6 % in the control. The histological studies illustrated heavily destruction of the reproductive structure of male and female when the both extracts of <em>Bauhinia</em> were applied. Also, The nutritional indices were calculated, the relative growth rate (RGR) values were reduced between 38.77 to 22.44 mg/day, while it recorded 58.4 - 84.45mg/day in the control. The efficiency of conversion of digested food (ECD %) values were reduced between 60. 96 to 91.32, while it recorded 166.03 - 201 in the control. The feeding deterrence index (FDI) values at 100 ppm were 41.64 % with butanol and 42.38% with petroleum ether crude extract of <em>Bauhinia</em>. On the other hand, the effect of butanol crude extract of <em>Bauhinia</em> on chitin formation caused inhibition in the larval growth of the cotton leafworm. The chitin formation ratio value displayed 31.505 mg/gm for the control, while it was 18.723 mg/gm for the <em>Bauhinia</em> butanol extract at the concentration of 50 ppm.
Bauhinia extracts,Spodoptera littoralis,Nutritional Indices,fecundity,fertility,spermatophores and chitin formation
https://jppp.journals.ekb.eg/article_87398.html
https://jppp.journals.ekb.eg/article_87398_e759f5cc4a565bb611b811486a86c786.pdf