ORIGINAL_ARTICLE
تقييم فعالية التأثير التثبيطي لأثنين من مضادات الأکسدة ومنظمات النمو ضد الفطر Botrytis cinerea
أجري هذا البحث في مختبرات کلية الزراعة بجامعة عمر المختار، ليبيا خلال الموسم الزراعي 2011/2012 لمعرفة مدى تأثير إضافة مضادات الأکسدة ومنظمات النمو على النمو الخضري أو الميسليومي للفطر Botrytis cinerea المسبب لمرض العفن الرمادي أو عفن الرقبة في البصل، وقد أدت المعاملة بالهيدروکوينون إلى خفض معنوي في النمو القطري للفطر عند جميع التراکيز المستعملة مقارنة بالشاهد، في حين أدت المعاملة بالامونيوم ترتريت إلى تشجيع النمو الميسيليومى في البداية وبارتفاع الترکيز إلى 5% لم يحصل نمو وتوقف على الإطلاق، کما خفضت المعاملة بمنظم النمو الجبرالين النمو القطري للفطر بنسب بسيطة جدا في حين أن المعاملة بمنظم النمو النفثالين اسيتک اسيد أدت إلى تشجيع النمو القطري للفطر بشکل معنوى أکثر من الشاهد وعند جميع التراکيز المستخدمة.
https://jppp.journals.ekb.eg/article_84400_9b249ec35faa0582695c015890bbc0f7.pdf
2012-11-01
1121
1127
10.21608/jppp.2012.84400
البصل
مضادات الاکسدة
منظمات النمو
Botrytis cinerea
النمو الخضري
العفن الرمادى
عفن الرقبة
زهرة
الجالي
z_elgali@yahoo.com
1
قسم وقاية النبات، کلية الزراعة، جامعة عمر المختار، البيضاء، ليبيا
LEAD_AUTHOR
نوارة
محمد
2
قسم وقاية النبات، کلية الزراعة، جامعة عمر المختار، البيضاء، ليبيا
AUTHOR
أمينة
لأربد
3
قسم وقاية النبات، کلية الزراعة، جامعة عمر المختار، البيضاء، ليبيا
AUTHOR
ORIGINAL_ARTICLE
تباين القدرة المرضية لعزلات مختلفة من الفطر Botrytis cinereaعلى بعض أصناف البصل
استخدمت في هذه الدراسة خمس عزلات من الفطر Botrytis cinerea تم الحصول عليها من أبصال مصابة بالعفن الرمادي، نميت هذه العزلات على الوسط الغذائي PSA و الوسط الغذائي OLA، وقد أظهرت النتائج أن العزلة B4 کانت الأسرع في النمو على الوسط PSA وأعطت اقل نسبة تجرثم وأجسام حجرية صغيرة عند حافة المستعمرة مقارنة بالعزلة B5 التي أعطت اقل مساحة نمو قطري وأکثر ترکيز لقاحي وتميزت بإنتاج أجسام حجرية کبيرة، وعند اختبار حساسية 3 أصناف من البصل وهي البصل الأحمر (Red creol)، البصل الأبيض (Texas Early Grano) و البصل الأصفر أو الذهبي (Spaniol) للإصابة بالمرض اختلفت الأصناف في درجة قابليتها للإصابة بالمرض تحت ظروف العدوى الصناعية ولم تسجل أصناف منيعة وکان الصنفين الأصفر والأبيض أکثر حساسية للإصابة أما الصنف الأحمر فکان مقاوماً، وکانت العزلة B5 أکثر العزلات المختبرة شراسة في إحداث العفن يليها العزلة B4 في حين کانت العزلات الأخرى متقاربة في إحداث العفن بدرجات أقل.
https://jppp.journals.ekb.eg/article_84401_61738ba5a6d614d16237a32eae3cf25f.pdf
2012-11-01
1129
1136
10.21608/jppp.2012.84401
العفن الرمادي
Botrytis cinerea
أمراض ما بعد الحصاد
البصل
زهرة
الجالي
z_elgali@yahoo.com
1
قسم وقاية النبات، کلية الزراعة، جامعة عمر المختار، البيضاء، ليبيا
LEAD_AUTHOR
نوارة
محمد
2
قسم وقاية النبات، کلية الزراعة، جامعة عمر المختار- البيضاء، ليبيا.
AUTHOR
أمينة
لأربد
3
قسم وقاية النبات، کلية الزراعة، جامعة عمر المختار- البيضاء، ليبيا.
AUTHOR
ORIGINAL_ARTICLE
FOOD PREFERENCE AND FOOD CONSUMPTION OF HOUSE SPARROW Passer domesticus niloticus Nicoll and Bonhote UNDER LABORATORY CONDITIONS
Laboratory study in cages was conducted, using different plant seeds to estimate the food preference of house sparrow, Passer domesticus niloticus Nicoll and Bonhote. Under choice and non choice test. Sparrows showed a clear difference in food preference among various seeds, while under non choice tests, sparrows preferred wheat, soybean, sorghum, safflower, sunflower and fenugreek respectively but under choice tests, sparrows preferred soybean, wheat, safflower, sunflower, sorghum and fenugreek respectively.
https://jppp.journals.ekb.eg/article_84402_ab94f31690eddec1389b594954333f35.pdf
2012-11-01
1137
1144
10.21608/jppp.2012.84402
Passer- Food preference
food consumption
seeds
choice
non-choice
M.
El-Danasory
1
Agric.Zoology&Nematology Dept. Fac. Agric. Al- Azhar Univ.
AUTHOR
W.
Abouamer
2
Plant protection Dept. Fac. Agric. Al- Azhar Univ.
AUTHOR
ORIGINAL_ARTICLE
DIETARY INTAKE OF SOME ORGANOPHOSPHOURS INSECTICIDES IN SOME VEGETABLE CROPS IN EGYPT, A PRELIMINARY CASE STUDY
A Total of 178 samples of commonly consumed vegetables were collected from seven different Egyptian governorates in 2007 and onward. A multiresidue method was used for analysis and the pesticides determined by gas chromatography. The Twenty nine organophosphorus (OP) pesticides were tested with validated analytical method using Gas chromatography, GC-NPD. Overall, 87% of the vegetables samples had no detectable organophosphorus pesticides. Of the analysed samples, 13.5% contained detectable residues, of which 4.5% exceeded MRL’s.The obtained monitoring results showed that 4 out of 29 organophosphorus pesticides were detected in the analysed vegetable samples. The frequencies and percentages of detected residues were chlorpyrifos detected in 12 samples with percentage 6.7 % followed by profenofos detected in 11 samples with percentage 6.2%, then ethion and chlorpyrifos-Me detected in 3 and 2 samples with percentages 1.7%, 1.1% respectively. Risk assessments were also performed by calculating estimated daily intake (EDI) comparing the figures with acceptable daily intake (ADI). The intakes of OP pesticides were generally lower than 100% of the Acceptable Daily Intakes (ADIs). Tomato is the most vegetables contribution of the highest OP intake. The highest intake was that of profenofos 59.62 ug/ person followed by chlorpyrifos 55.62 ug/person, chlorpyrifos-Me, 15.34 ug/person and then ethion 12.98 ug/person, based on GEMS/food consumption rate
https://jppp.journals.ekb.eg/article_84403_b3ceec6f746ac4d3d01d79341d1e8444.pdf
2012-11-01
1145
1156
10.21608/jppp.2012.84403
Pesticides residues
Organophosphorus
OP
vegetables
ADI
EDI
MRL
intake
Sohair
Gad Alla
1
Ministry of Agric., Agric. Res. Center, Central Laboratory of Residue analysis of Pesticides and Heavy Metals in Food, Dokki, Egypt.
AUTHOR
M.
Ayoub
2
Ministry of Agric., Agric. Res. Center, Central Laboratory of Residue analysis of Pesticides and Heavy Metals in Food, Dokki, Egypt.
AUTHOR
E.
Salama
3
Ministry of Agric., Agric. Res. Center, Central Laboratory of Residue analysis of Pesticides and Heavy Metals in Food, Dokki, Egypt.
AUTHOR
W.
Thabet
4
Ministry of Agric., Agric. Res. Center, Central Laboratory of Residue analysis of Pesticides and Heavy Metals in Food, Dokki, Egypt.
AUTHOR
Naglaa
Lotfy
5
Suez Canal Univ., Fac. of Agric., Plant Protection Dept. - Ismailia , Egypt.
AUTHOR
ORIGINAL_ARTICLE
THE POTENTIAL ROLE OF SOME PLANT EXTRACTS OF ANTIFUNGAL PROPERTIES AGAINST THE EFFICACY OF Trichoderma viride FOR CONTROLLING GRAY MOLD OF ONION CAUSED BY Botrytis cinerea
Botrytis cinerea Pers.; Fr., induces grey mold of onion worldwide. Fungicide applications are often used to control this pathogen. Natural plant extract do not show hazardous effects and likely to be used instead of the synthetic fungicides. In this study, antifungal activity of 5, 10, 20 and 40 μL of Mentha longifolia, Origanum marjoram, Artemisia sp and Trichoderma filtrate, respectively were applied in vitro to study their effect on the mycelial growth of B. cinerea using a poisoned food method. All treatments significantly presented their effect on the mycelia growth of the pathogen while the maximum inhibitory effect was shown when 40 μL of the extract was used. The inhibitory effect was affected by the amounts of the extract and the incubation time of the samples. Samples treatment of 40 μL concentration showed a maximum inhibition in the mycelia growth 5 days after incubation. This study shows that Artemisia sp has a potential to be used in the controlling management of B. cinerea. According to the available literature, this study could be the first to record the potential of Mentha longifolia, Origanum marjoram, Artemisia sp extracts and Trichoderma filtrate on the control of Botrytis cinerea, the causal agent of gray mold of onion in El-Beida, Libya.
https://jppp.journals.ekb.eg/article_84404_e2964b03a6d8a3775fef2c48f8feb40c.pdf
2012-11-01
1157
1163
10.21608/jppp.2012.84404
Onion
gray mold
antifungal activity
Plant extracts
antagonistic fungi
Botrytis cinerea
Z.
El-Gali
z_elgali@yahoo.com
1
Dept. of Plant Protection, Fac. of Agric., Omer Al-Mukhtar Univ.El-Beida, P.O. 919.
LEAD_AUTHOR
N.
Mohamed
2
Dept. of Plant Protection, Fac. of Agric., Omer Al-Mukhtar Univ.El-Beida, P.O. 919.
AUTHOR
A.
Larbud
3
Dept. of Plant Protection, Fac. of Agric., Omer Al-Mukhtar Univ.El-Beida, P.O. 919.
AUTHOR
ORIGINAL_ARTICLE
EFFECTS OF PHOTOPERIOD ON THE BIOLOGY OF THE GRANARY WEEVIL, SITOPHILUS GRANARIUS L. IN THE LABORATORY
The present study investigated the effects of photoperiod on the development of immature stages, oviposition periods and adult longevity of the granary weevil, Sitophilus granarius L. at constant temperature of 27±2C° and 70±5°% R.H. in the laboratory. Statistical analysis proved considerable effect of 16 and 24 hr. photophase on the incubation period of eggs. At complete darkness the shortest larval duration (19.6 days) was observed while the longest one (25.3 days) was shown at 24 hr. photophase. Pupal exposed to continuous light showed the lowest mean pupal period (4.7 days) as compared with 5.4 days for the pupal exposed to 16 hr. light. In addition, the period from egg to adult was markedly influenced by the tested photoperiods. The longest developmental period (40.9 days) was observed under continuous light while the shortest one was recorded at complete darkness. The oviposition periods of adult females decreased by increasing the photophase periods. Adult females kept in complete darkness recorded the longest oviposition period (89.4 days). Meanwhile, the shortest period (84.6 days) was reported for females lived under continuous light. Also, adults exposed to complete darkness lived longer than those lived under continuous illumination, however both sexes lived nearly equal periods at any tested photoperiodic regimes
https://jppp.journals.ekb.eg/article_84405_3f52d7008107afeb54121d8c4c85f1b6.pdf
2012-11-01
1165
1171
10.21608/jppp.2012.84405
Y.
Darwish
1
Plant Protection Dept., Fac. of Agric., Assiut Univ., Assiut, Egypt
AUTHOR
Y.
Omar
youssf@yahoo.com
2
Plant Protection Dept., Fac. of Agric., Assiut Univ., Assiut, Egypt
AUTHOR
R.
Hassan
3
Plant Protection Dept., Fac. of Agric., Al-Azhar Univ., Assiut, Egypt
AUTHOR
M.
Mahmoud
4
Plant Protection Dept., Fac. of Agric., Al-Azhar Univ., Assiut, Egypt
AUTHOR
ORIGINAL_ARTICLE
EFFECT OF SOME ANTAGONISTIC BACTERIA IN REDUCING OF PEANUT DAMPING - OFF, ROOT AND POD ROT INCIDENCE CAUSED BY Rhizoctonia solani
Seventeen bacterial isolates from the soil, rhizosphere, geocarposphere, peanut roots and pegs beside three supplied bioagents (Bacillus subtilis, Pseudomonas putida and Pseudomonas fluorescens) used to study their effect on four isolates of Rhizoctonia solani. In vitro only nine isolates caused moderate to strong inhibition to the four tested isolates of R. solani. P. fluorescens (Pf.5) gave the highest significant antagonistic effect against the four tested isolates of R. solani on PDA medium followed by B. subtilis (Bs.1), P. putida (PP) and Bacillus sp (S.5). In greenhouse and field experiment, the most effective isolates in reducing peanut damping-off, root and pod rot diseases were P. fluorescens (Pf.5) followed by B. subtilis (Bs1) and Bacillus sp (S.5). Regarding to peanut pod yield, the highest total peanut pod yield in the two seasons (2009 and 2010) was obtained by B. subtilis (Bs1) followed by P. fluorescens. The obtained data clearly showed the ability of some tested bioaegents to be near to the fungicides effect (Rezolex-T) in reducing damping-off and peanut root and pod rots diseases. In this respect, in greenhouse and field trials P. fluorescens (Pf 5.) was the nearest one to fungicides effect in reduction of peanut damping-off and peanut root and pod rots and exceeded the commercial biocide effect (Rhizo-N), followed by Bacillus sp (S.5) and B. subtilis (Bs1) compared to other tested bioagents.
https://jppp.journals.ekb.eg/article_84406_9136c8da9fbaf70c1b8eda18e66e08c8.pdf
2012-11-01
1173
1187
10.21608/jppp.2012.84406
Rhizoctonia solani
Bacillus subtilis
Pseudomonas putida
Pseudomonas fluorescens
bioagent
biological control
Peanut
Damping-off
Root rot
pod rot and fungicides efficiency
Zeinab
Hussien
1
Plant Pathology Res. Ins., Agric. Res. Center, Giza., Egypt
AUTHOR
E.
Mahmoud
2
Plant Pathology Res. Ins., Agric. Res. Center, Giza., Egypt
AUTHOR
A.
Metwaly
3
Plant Pathology Res. Ins., Agric. Res. Center, Giza., Egypt
AUTHOR
H.
Sobhy
4
Institute of African Research and Studies, Cairo Univ., Giza, Egypt
AUTHOR
ORIGINAL_ARTICLE
RECOVERY OF Cephalosporium maydis THE CAUSAL AGENT OF MAIZE LATE WILT DISEASE FROM VARIOUS PLANT PARTS WITH SYMPTOMATIC OR ASYMPTOMATIC INFECTION AND ANATOMICAL CHARACTERS OF TOLERANT AND SUSCEPTIBLE HYBRIDS.
Recovery percentage of C. maydis, the causal agent of maize late wilt disease, was determined under greenhouse conditions in 2010 in three plant parts; i.e. second internode of stalk above the ground level (SIS), ear shank internode (EI) and tassel internode (TI), of ten maize hybrids with and without symptoms. The two maize hybrids, SC155 (susceptible) and SC124 (tolerant) were selected from the previous experiment to assess recovery percentage and seven anatomical parameters in 2011. These parameters were; vascular bundles number (VBN) / 0.49 mm² of area of stalk section, metaxylum cells number (MCN), protoxylum cells number (PCN), metaxylum cells diameter (MCD), protoxylum cells diameter (PCD), maximum of scleronchyma cell layers number (MASCLN) and minimum of scleronchyma cell layers number (MISCLN). These parameters were measured at the same time in cross sections of symptomatic (SI), asymptomatic (AI) and non infected (NI) plants by the agent. Recovery percentage in plants with symptomatic infection differed among hybrids depending on the degree of tolerance. The recovery percentage ranged from 10 to 85 % in SIS, from 10 to 85 % in EI, and from 10 to 69 % in TI. In apparently healthy plants, recovery percentage ranged from 10 to 70 % in SIS, from 0 to 50 % in EI and from 0 to 20 % in TI. However, in 2011 experiment, the recovery percentage of the susceptible hybrid was significantly higher than those of the tolerant ones in all three plant parts with or without symptoms. Concerning the measurements of anatomical parameters, the susceptible maize hybrid had number of vascular bundles / 0.49 mm² of section area significantly higher than those of the tolerant ones only in plant sections with symptomatic and asymptomatic infection. Also tolerant plants with SI, AI, and NI showed significantly higher levels in maximum number of scleronchyma cell layers than the susceptible ones indicating that disease tolerance was associated with specific structure. In summary, C. maydis not only had the ability to invade both the tolerant and susceptible maize plants but also moves from above ground internode to ear shank internode and tassel internode and may reach to the kernels through the cob and completing its disease cycle.
https://jppp.journals.ekb.eg/article_84407_df14457e9a7b1b6fc7b0888c3f353b0c.pdf
2012-11-01
1189
1201
10.21608/jppp.2012.84407
Cephalosporium maydis
Maize
Symptomatic
Asymptomatic
anatomical parameters
A.
El-Naggar
1
Maize and Sugar Crops Dis. Res. Sec., Plant Pathol. Res. Inst., ARC, Giza, Egypt.
AUTHOR
ORIGINAL_ARTICLE
BIOACTIVITY OF Ulva spp. SOLUBLE POLYSACCHARIDES ON GERMINATION AND GROWTH OF SOME CROP PLANTS.
Seaweed compounds can play an important role in the plant growth promotion and metabolism. We applied two concentrations (5 and 10 mg/ml) of soluble polysaccharides extracted from the green macro algae Ulva fasciata and Ulva lactuca on germination of Lupinus termis seeds. Growth and germination metabolism (amylase, protease activity) were studied. The priming of seeds with U. fasciata soluble polysaccharides (5mg /ml) significantly induced the highest enhancing effect on the base of all parameters (seed germination (100 ± 0%), shoot length (9.41 ± 0.361 cm) cm and root length (11.20 ± 1.08 cm), fresh weight (2.446 ± 0.054g) and dry weight (0.461 ± 0.044g); amylase activity ( 467.346 ± 36 mg reducing sugars / min .g. dr.wt), protease activity(514.062 ± 27 µg amino acids / min .g. dr.wt)).These results suggest that seaweed extracts induce stronger seed germination efficiency and growth parameters and can be recommended to use as organic fertilizer.
https://jppp.journals.ekb.eg/article_84408_dc3b2b3631cf67150af08bd6d75a7a1c.pdf
2012-11-01
1203
1209
10.21608/jppp.2012.84408
Ulva fassciata
Ulva lactuca
soluble polysaccharides
Lupinus termis
seed germination
Mervat
Hussein
1
Botany Department, Faculty of Science, Mansoura University.
AUTHOR
M.
Abd el Gwad
2
Biological Applications department-NRC- Atomic Energy Authority, Cairo.
AUTHOR
Ragaa
Hamouda
3
Microbial Biotechnology Department, GEBRI, MU, Egypt.
AUTHOR
M.
Elshahat
4
Botany Department, Faculty of Science, Mansoura University.
AUTHOR
ORIGINAL_ARTICLE
DETERMINATION OF HEAVY METALS CONTENT IN COTTON HONEY IN KAFR EL-SHIEKH PROVINCE, EGYPT
Honey samples were collected from nine regions represented for Kafr El-Sheikh Province, Egypt during cotton season in 2011, to estimate certain heavy metals in cotton honey. The obtained results showed that, all honey samples contained four heavy metals (Fe, Mn, Zn and Pb) and their levels were found below acceptable limits The elements of Fe, Mn, Zn and Pb in cotton honey ranged between 20.00-44.50, 0.42-1.40, 1.20-3.28 and 0.50-2.37 mg/kg, respectively. The risk elements (Cu, Cd, Ni and Cr) were not detected in all samples. Significant (P < 0.01) positive correlations between Fe and Mn as well as between Zn and Pb were observed. It can be concluded that the heavy metals content of cotton honey in Kafr El-Sheikh Governorate significantly depended on the area from where it was harvested.
https://jppp.journals.ekb.eg/article_84409_6eb89913b3fe15752fdab46fe4c4c078.pdf
2012-11-01
1211
1219
10.21608/jppp.2012.84409
Honey bee
Honey
Cotton
Heavy metals
risk elements
A.
EL-Kazafy
kazafy_taha@yahoo.com
1
Economic Entomology Dept., Fac. of Agric., Kafrelsheikh Univ., Kafr El-Sheikh, Egypt.
AUTHOR
M.
Ali
honeybee1433@hotmail.com
2
Dept. of Plant Protection, Fac. of Agric., Ain Shams Univ. P.O. Box 68 Hadayek Shoubra, 11241 Cairo, Egypt.
AUTHOR
ORIGINAL_ARTICLE
MULTI-RESIDUES ANALYSIS OF CHEMICAL PESTICIDES IN IMPORTED AND LOCALLY PRODUCED HONEY IN KINGDOM OF SAUDI ARABIA
Ripe honey samples were collected from different regions of Saudi Arabia during honey flow seasons in 2010-2011, to monitor certain pesticides residues in local and imported honey. The Pesticide residues were determined by gas chromatography with mass selective detector (GC–MSD). A multi-residue method was developed and described for simultaneously determination of 86 pesticides commonly used in crop protection. This method used to determine pesticide residues with a broad range of physico-chemical properties in fresh fruit and vegetables related to Organophosphorous, Organochlorines, Pyrethroids and Carbamates mainly used in agriculture. Pesticide residues above maximum concentrations of pesticide residues (MRLs) were detected in 10 honey samples and represent (11%) of 91 samples. The acaricides; amitraze, coumaphos and endosulfan which use against varroa mite disease (Varroa destructor Anderson and Trueman) in honey bee colonies were detected in the honey samples. It concluded thata monitoring program for pesticide residues in honey markets is necessary needed.
https://jppp.journals.ekb.eg/article_84410_764b390cf660ee82df44d06ec5b556e0.pdf
2012-11-01
1221
1234
10.21608/jppp.2012.84410
Multi-residue analysis
Honey
Pesticides
Residue analysis
GC-MS
M.
Ali
honeybee1433@hotmail.com
1
Dept. of Plant Protection, Fac. of Agric., Ain Shams Univ. P.O. Box 68 Hadayek Shoubra, 11241 Cairo, Egypt.
LEAD_AUTHOR
M.
Selem
2
Department of National Resources Institute of African Research and Studies- Cairo- Univ. Egypt.
AUTHOR
ORIGINAL_ARTICLE
LABORATORY STUDIES ON THE EGYPTIAN PRAYING MANTIS Miomantis paykullii STAL, (MANTODEA: MANTIDAE)
Certain biological aspects of the Egyptian praying mantis Miomantis paykullii (Stal, 1871) were studied in the laboratory. Results indicated that ootheca contained an average of 52.4 nymphs, with a mean length of 15.0 mm. The total duration period of nymphal stage required 64.1±10.54 and 54.8±6.54 days for female and male respectively. The generation period was 99 days at daily mean of temperature 25.9Cº and relative humidity percentage 45.0%. Six nymphal instars were recorded for male whereas, seven instars were found for female. The fecundity of M. paykullii through the oviposition period was 336.2±56.78 nymph per female.
https://jppp.journals.ekb.eg/article_84411_c856381437172f895591caa9dc7c2ff2.pdf
2012-11-01
1235
1240
10.21608/jppp.2012.84411
T.
Ata
1
Dep. of Plant Protection. Fac. of Agric. Al-Azhar University. Cairo. Egypt.
LEAD_AUTHOR
ORIGINAL_ARTICLE
RELATIONSHIP BETWEEN LUNAR LIGHT AND POPULATION OF Helicoverpa armigera (Hub.) MOTHS AT GHARBIA GOVERNORATE
This work aimed to study the relationship between phases of lunar lighting and population peaks of American bollworm (ABW), Helicoverpa armigera (Hub.) moth. It was carried out at Zefta district, in Gharbia Governorate, Egypt during four successive cotton seasons (2005-2008), Results showed that of H. armigera moths population had five to six peaks per season. At Gregorian months, moth peaks occurred at different dates per month, during the four seasons. Whereas, at lunar months, they occurred at constant moon phases (at the new moon or at the first quarter every month) in the same seasons. The scoto phase period (new moon) had a positive effect on the activity of moth populations, while, a negative effect was during the highest luminosity (full moon). The relationships between the percentages of moon light and moth populations were, in general, negative and highly significant and led to a linear regression equation. This information, cold aid the decision makers to better except the timing of the highest moth populations that produces different stages of this pest and reduces / eliminate their damage to cotton plants using available control methods.
https://jppp.journals.ekb.eg/article_84412_1e6f666db0ce76283fa60e3bf23c8a7f.pdf
2012-11-01
1241
1251
10.21608/jppp.2012.84412
Helicoverpa armigera
lunar
Gregorian months and Lunar phases
M.
Nada
1
Plant Protection Research Institute, ARC, Egypt, Dokki, Giza, Egypt
AUTHOR
M.
Ragab
2
Plant Protection Research Institute, ARC, Egypt, Dokki, Giza, Egypt
AUTHOR
A.
Zaki
3
Plant Protection Research Institute, ARC, Egypt, Dokki, Giza, Egypt
AUTHOR