Egyptian Society of Biological Sciences
Egyptian Academic Journal of Biological Sciences. A, Entomology
1687-8809
2090-0813
10
8
2017
12
01
Effect of Planting Dates on Major Insect Pests and Yield of Watermelon Seeds (Citrullus lanatus.) in Kafr El - Sheikh Governorate
1
8
EN
E.
A. M.
Mousa
Plant Protection Research Institute, (A.R.C), Giza, Egypt
10.21608/eajb.2017.11986
The effect of four planting dates of watermelon to produce the (<em>Citrullus lanatus</em>) seeds during summer plantation in both seasons 2011 & 2012 (April,1<sup>st</sup>, April, 15<sup>th</sup>, May, 1<sup>st</sup> , and May, 15<sup>th</sup>) by the levels of infestation with four pests, whitefly, <em>Bemisia tabaci </em>(Genn.), aphid, <em>Aphis gossypii </em>Glover, jassid , <em>Empoa-scadecipiens</em> (Paoli) and armyworm, <em>Spodoptera littoralis</em> (Boisd) in addition the natural enemies two predators<em> Coccinella undecimpunctata</em> Reiche and <em>Chrysoperla carnea</em> Stephens. The yield of this plants, were weighted during two successive seasons (2011 and 2012). The degree of infestation of<em>B. tabaci, A. gossypii, E. decipiens</em> and <em>S. littoralis</em> increased significantly by delaying sowing date, while watermelon plants cultivated in the earliest planting date (April, 1<sup>st</sup> and April, 15<sup>th</sup>) which were attacked by the lowest numbers and gave highest weight of watermelon seeds, the plants of the latest sowing date (May, 1<sup>st</sup> and May, 15<sup>th</sup>) harboured more insects infestation with lowest weight of watermelon seeds. Statistical analysis for the effect of the two selected predators factors <em>C. undecimpunctata</em> and <em>C. carnea</em> on the population density of<em> B. tabaci</em>,<em>A. gossypii</em> and<em> E. decipiens</em> during both seasons. gave significant positive effects of<em> C. undecimpunctata</em> and <em>C. carnea</em> on the seasonal fluctuations of <em>B. tabaci</em> nymph and<em> A. gossypii</em>in both seasons. The combined effect (explained variance (E.V) of these natural enemies factors showed that <em>B. tabaci</em>and <em>A. gossypii</em> these factors were responsible as a group for 99 % and 99% effects throughout both seasons, respectively. The results revealed insignificant positive effects of<em> C. undecimpunctata</em> and <em>C. carnea</em> on the seasonal fluctuations of <em>E. decipiens</em> individual in both seasons. The combined effect explained variance (E.V) of these predators factors on<em> B. tabaci</em> nymph showed that these factors were responsible as a group for 40 % and 37 % effects throughout both seasons, respectively. Therefore, it was concluded that, the planting date was effective on the rate of insect infestation and watermelon seeds yield.
<strong>Recommendation:</strong> The first and second planting dates (April 1st and April, 15th) were effective on the rate of insect infestation and increases yield of watermelon.
Watermelon,(Citrullus lanatus.) summer plantation whitefly. Bemisia tabaci (Genn.) Aphid,Aphis gossypii Glover Jassid. Empoasca decipiens (Paoli) Armyworm,Spodoptera littoralis (Boisd) the natural enemies predators,Coccinella undecimpunctata Chrysoperla carnea and yield
https://eajbsa.journals.ekb.eg/article_11986.html
https://eajbsa.journals.ekb.eg/article_11986_a0ee21922f9b4a7f12276c04bff38897.pdf
Egyptian Society of Biological Sciences
Egyptian Academic Journal of Biological Sciences. A, Entomology
1687-8809
2090-0813
10
8
2017
12
01
Control of Some Piercing Sucking Pests Infesting Cucumber by Many Botanical Oil and Synthetic Insecticides and Economically Feasibility to Control
9
15
EN
Mona
N.
Wahba
Plant Protection Research Institute, ARC. Dokki, Giza, Egypt
Badran
A.
B
Plant Protection Research Institute, ARC. Dokki, Giza, Egypt
Mona
I. A
Ammar
Plant Protection Research Institute, ARC. Dokki, Giza, Egypt
Hammam
M. A.
Nasser
Agric. Economics Res. Inst., ARC. Giza, Egypt
10.21608/eajb.2017.11987
Experimental area was carried out at faculty of Moshothor Agricultural, Banha University, Qalubiya Governorate, under open field conditions during April 2015 and 2016, respectively. This study aim to evaluating the efficacy of some plant extracts and chemical insecticides against sucking pests encompass (the whitefly, <em>Bemisia tabaci</em>, the thrips<em>, Thrips tabaci</em>, the aphid,<em> Aphis gossypii</em> in addition to the spider mite, <em>Tetranychus urticae</em> on Cucumber (<em>Cucumis sativus</em> L) and Economic feasibility to pests control under field condition. The results revealed that there are significant differences between using three systemic insecticides and five botanical oils on population density of whitefly, thrips and spider mite without aphid, wherever the tested compounds cause reduction to these pests. It is clear from the previous view that each of the treatment Final oil and garlic Oil extraction economically feasible compared to experiments either (thiamethoxam, imidacloprid , acetamiprid, rosemarie oil, sesame oil, lemon oil and control) as each pound investor in them achieves profit of each of them, respectively approximately 3.7, 2.9 pounds.
<strong>Recommendation:</strong> the paper recommendation by using five botanical oils to reduce population of whitefly, thrips, aphid and red mite without any pesticides.
Cucumber,(Cucumis sativus L)sucking pests Whitefly Bemisia tabaci Thrips,Thrips tabaci aphid,Aphis gossypii spider mite,Tetranychus urticae plant extracts,chemical insecticides economically
https://eajbsa.journals.ekb.eg/article_11987.html
https://eajbsa.journals.ekb.eg/article_11987_6ef846335103ecc8456a754674dd52de.pdf
Egyptian Society of Biological Sciences
Egyptian Academic Journal of Biological Sciences. A, Entomology
1687-8809
2090-0813
10
8
2017
12
01
Activity of Flonicamid and Two Neonicotinoid Insecticides against Bemisia tabaci (Gennadius) and Its Associated Predators on Cotton Plants
25
34
EN
El-Zahi
S.
El-Zahi
Plant Protection Research Institute, Agricultural Research Center, Dokki, Giza, Egypt
zasaber951@yahoo.com
El-Sayed
A.
El-Sarand
Plant Protection Research Institute, Agricultural Research Center, Dokki, Giza, Egypt
Ghada
N.
El Masry
Plant Protection Research Institute, Agricultural Research Center, Dokki, Giza, Egypt
10.21608/eajb.2017.11990
The sweet potato whitefly, <em>Bemisia tabaci</em> (Genn.), is a world-wide pest causing severe damages to numerous economic crops and has acquired resistance to most of conventional insecticides, particularly organophosphates and pyrethroids. Hence, Flonicamid, thiamethoxam and imidacloprid were evaluated for their efficacy against different developmental stages of <em>B. tabaci</em> on cotton plants under laboratory and field conditions at Sakha Agricultural Research Station, Egypt, during the cotton growing seasons of 2016 and 2017. Their side effects on the predacious stages of the associated predators i.e., the larvae of <em>Chrysoperla carnea</em>, both adults and larvae of <em>Coccinella spp</em>. and <em>Scymnus spp</em>., and true spiders were studied in the field as well. Results of the laboratory trials indicated that flonicamid provided no insecticidal activity on <em>B. tabaci</em> eggs, while thiamethoxam was significantly the most effective with LC<sub>50</sub> value of 37.38 mg a.i.L<sup>-1</sup>. Thiamethoxam possessed the highest toxic effect against the 2<sup>nd</sup> instar nymphs followed by imidacloprid and flonicamid recording LC<sub>50</sub> values of 30.37, 136.41, and 226.54 mg a.i.L<sup>-1</sup>, respectively. Under the field conditions, the activity of thiamethoxam did not differ significantly from that of imidacloprid recording from 83.19 ــ 93.24% and from 77.02 ــ 82.48% control of adults and immature stages of <em>B. tabaci</em>, respectively. Flonicamid demonstrated sufficient control, where it resulted in 75.67 to 80.64% and 64.97 to 69.58% reduction in the adults and immature stages, respectively. All the tested insecticides were more effective against adults than immature whitefly. Flonicamid was significantly the most harmless to the associated predators causing 21.01 to 23.75% reduction. Thiamethoxam and imidacloprid resulted in 35.24 to 49.96% reduction in the associated predator's population. These results suggest that flonicamid, thiamethoxam and imidacloprid could be successfully incorporated in IPM programs to control <em>B. tabaci</em> under the field conditions.
Flonicamid,thiamethoxam,Imidacloprid,Bemisia tabaci,Predators
https://eajbsa.journals.ekb.eg/article_11990.html
https://eajbsa.journals.ekb.eg/article_11990_7a97574465201458865dfeb9406924a1.pdf
Egyptian Society of Biological Sciences
Egyptian Academic Journal of Biological Sciences. A, Entomology
1687-8809
2090-0813
10
8
2017
12
01
Management Control Strategy of Devastated Tomato Borer, Tuta absoluta on Tomato Crop at El-Behira Governorate, Egypt.
35
43
EN
Gamal
M.
Hassan
Plant Protection Research Institute, Agricultural Research Center, Dokki, Giza, Egypt.
Abd El-Nasser
T.
Hassan
Plant Protection Research Institute, Agricultural Research Center, Dokki, Giza, Egypt.
Alaa
M.
Khorchid
Plant Protection Research Institute, Agricultural Research Center, Dokki, Giza, Egypt.
10.21608/eajb.2017.11991
Field experiments were conducted during two successive summer seasons, 2016 and 2017 to compare some methods of integrated pest management (IPM) program against <em>T. absoluta</em> with a control field (untreated field) from 3<sup>rd</sup> May to 3<sup>rd</sup> July at El- Berka village, Abu-Hommus district, El-Behira Governorate.
Results showed that larval activity of <em>T. absoluta</em> during both two seasons, 2016 and 2017 was higher in control field (23.11±1.82 mean no. of larvae/leaf) than in IPM field program (2.71±0.40 mean no. of larvae/leaf). The numbers of male captures per trap per 3 days were increased during the experiment in an IPM field with overall mean no. of 201.29±4.81 males per trap per 3 days. However, the mean no. of male catches was 186.9±7.23 males/trap/3 days in control field with significant difference between them during two successive seasons.
A thorough research program towards developing some sequence tactics in IPM program for <em>T. absoluta</em> including a foliar spray of Thiamethoxam 20%WG + Chlorantraniliprole 20%WG mixture, Flubendiamid 20%WG, Abamectin 8.4%SC, Spinetoram 12%SC and water mass trapping male moths using red plastic basin water trap (about 10 lure traps/ feddan) on tomato variety, K186. Such an approach would not only allow for reducing the pest, but also result in a better understanding management strategy of devastated tomato borer, <em>T. absoluta</em> in a given region.
lures,Management,Mass trapping,Pesticides,Sexual pheromone,Tomato borer,Tuta absoluta
https://eajbsa.journals.ekb.eg/article_11991.html
https://eajbsa.journals.ekb.eg/article_11991_49f412eff926e6eccce84de9751df878.pdf
Egyptian Society of Biological Sciences
Egyptian Academic Journal of Biological Sciences. A, Entomology
1687-8809
2090-0813
10
8
2017
12
01
Effects of Mineral Fertilizers on Peach Infestation With The Mediterranean Fruit Fly, Ceratitis capitata (Wied.) (Diptera: Tephritidae)
45
51
EN
Ghada
M. A.
Morsi
Plant protection Research Institute, Dokki, Giza, Egypt
drghada156@gmail.com
Saneya
R. M.
Farag
Plant protection Research Institute, Dokki, Giza, Egypt
Gamila
S.
Selem
Plant Protection Dept., Fac. of Agric., Zagazig Univ., Egypt
10.21608/eajb.2017.11992
The most important management for high yielding production is nutrition management, but it may affect the response of peach trees to <em>Ceratitis capitata</em> insect. This experiment was carried out to evaluate the effect of different mineral fertilizers Bio max, Thiosilicon and the mixture of them) on increasing the defense mechanism of peach trees to infestation by the Med. fly <em>C. capitata</em> in the field. In this study 5 concentrations were used Bio max and Thiosilicon (0.05, 0.1, 0.2, 0.4 and 0.6%) and mixture of them was used (0.2 Bio +0.2 Thio, 0.4 Bio +0.2 Thio and 0.2 Bio +0.4 % Thio) there were applied in two separated sprays (1 and 2) and at three times intervals (3, 5 and7 days). The obtained results showed that in spray 1, the mixture of the two compounds recorded highest reduction % of infestation by <em>C. capitata</em> and in spray 2, Bio max recorded highest reduction % of infestation. In spray 1 highest reduction % of infestation was obtained at three days interval while in spray 2 the best reduction % was obtained at seven days interval. These results concluded that the used mineral fertilizers enhance peach trees in controlling <em>C. capitata</em>,as the silicon, once absorbed by the xylem veins, is deposited on the wall of the plant tissues, forming a mechanical barrier. This control tactic increased the obtained yield.
silicon,Mineral fertilizers,Ceratitis capitate,Defense
https://eajbsa.journals.ekb.eg/article_11992.html
https://eajbsa.journals.ekb.eg/article_11992_033bf3160adb67cb5fd5f2751d6e1caa.pdf
Egyptian Society of Biological Sciences
Egyptian Academic Journal of Biological Sciences. A, Entomology
1687-8809
2090-0813
10
8
2017
12
01
Effect of Chlorophyllin Compound (Photosensitizer) on Main Metabolites Level of Spodoptera littoralis, Total Carbohydrates, Total Proteins, and Total Lipid
53
66
EN
Sameh
M.
Abd El-Naby
Plant Protection Research Institute, Agricultural Research Center, Dokki, Giza, Egypt
10.21608/eajb.2017.11993
Photosensitizers are promising and expected to give new technical in agriculture sectors in the future. In this paper, our discussion is focused on photosensitizer and its effects on the main metabolites, total carbohydrates, total proteins, and total lipid were determined in the total body homogenates of <em>Spodoptera littoralis</em>. In the present study, the results showed the highest decrease in the total carbohydrate and total lipid. On the other hand, total protein showed lower reduction in most treatments. The photosensitizer copper chlorophyllin was more effective on enzyme activity level of <em>Spodoptera littoralis </em>and lightly played an active role in enzyme activity.
Spodoptera littoralis,photoinsecticide,Photosensitizer,Copper chlorophyllin,Magnesium Chlorophyllin,total proteins,total carbohydrate and total lipid
https://eajbsa.journals.ekb.eg/article_11993.html
https://eajbsa.journals.ekb.eg/article_11993_c2981b7f77e1f587c55811c9ab9cbcb5.pdf
Egyptian Society of Biological Sciences
Egyptian Academic Journal of Biological Sciences. A, Entomology
1687-8809
2090-0813
10
8
2017
12
01
Assessment of the toxic and disruptive effects of Precocene II on growth and metamorphosis of the grasshopper Euprepocnemis plorans plorans (Charp.) (Orthoptera: Acrididae).
67
83
EN
Karem
Ghoneim
Department of Zoology and Entomology, Faculty of Science, Al-Azhar University, Cairo, Egypt.
karemghoneim@gmail.com
Basiouny
A.
Department of Zoology and Entomology, Faculty of Science, Al-Azhar University, Cairo, Egypt.
10.21608/eajbsa.2017.24840
As reported in Egypt, the grasshopper <em>Euprepocnemis plorans plorans</em> is considered as a serious pest to crops in some regions. The objective of the current investigation was to evaluate the toxic and disruptive effects of the anti-JH compound, Precocene II (PII), on this pest. Nymphs of the newly moulted 2<sup>nd</sup> and 4<sup>th</sup> (penultimate) instars had been exposed to the doses: 60, 40, 20 and 10 µg/cm<strong><sup>2</sup></strong>. Complete mortality of nymphs was observed within 24 h of exposure of 2<sup>nd</sup> instar nymphs to the higher two doses. At other doses, PII exhibited a remarkably extended low toxicity on the subsequently moulted nymphal instars and emerged adults. After exposure of the 4<sup>th</sup> instar nymphs to PII, no complete mortality was observed, but various mortalities had been recorded among the treated nymphs, 5<sup>th</sup> instar nymphs and adults. LD<strong><sub>50</sub></strong> values of PII were calculated as 0.388 and 17.022µg/cm<strong><sup>2</sup></strong>, after treatment of 2<sup>nd</sup> and 4<sup>th</sup> instar nymphs, respectively. After treatment of 2<sup>nd</sup> instar nymphs with PII, the nymphal growth of both 4<sup>th</sup> and 5<sup>th</sup> instars was insignificantly inhibited, regardless the dose. Exposure of 2<sup>nd</sup> instar nymphs to the lowest dose of PII led to 3.33% precociously moulted nymphs into 4<sup>th</sup> instar, skipping off the 3<sup>rd</sup> instar. On the other hand, exposure of 4<sup>th</sup> instar nymphs to the higher tow doses of PII induced some treated nymphs to precociously metamorphose into adultoids, skipping over the 5<sup>th</sup> instar. Some permanent nymphs (3.85%) appeared among the 2<sup>nd</sup> instar nymphs after exposure only to 20µg/cm<sup>2</sup>. Also, similar permanent nymphs were induced during the 4<sup>th</sup> instar. No permanent nymphs had been induced after exposure of 4<sup>th</sup> instar nymphs to PII.
Adult,mortality,nymph,permanent nymph,toxicity
https://eajbsa.journals.ekb.eg/article_24840.html
https://eajbsa.journals.ekb.eg/article_24840_629cef2b5158737dbfd3d5b14b74fc1e.pdf
Egyptian Society of Biological Sciences
Egyptian Academic Journal of Biological Sciences. A, Entomology
1687-8809
2090-0813
10
8
2017
12
01
Disruptive Impacts of Selected Insecticides on Larval Haemogram parameters of the Red Palm Weevil, Rhynchophorus ferrugineus (Coleoptera: Curculionidae)
85
97
EN
Hamadah
Kh.
Sh.
Faculty of Science, Al-Azhar University, Madenit Nasr, Cairo, Egypt
khalid_hamadah@azhar.edu.eg
Tanani
M.
A.
Faculty of Science, Al-Azhar University, Madenit Nasr, Cairo, Egypt
10.21608/eajbsa.2017.24847
<span lang="EN-GB">The present study was conducted to investigate the effect of three insecticides,pyriproxyfen (admeral), neemazal (azadirachtin) and spinetoram (Radiant), against the red palm weevil </span><em><span lang="EN-GB">Rhynchophorus ferrugineus.</span></em><span lang="EN-GB"> Two sublethal concentrations of each compound had been estimated in a preliminary test: LC<sub>50</sub>: 1067.5 ppm, LC<sub>75</sub>: 2317.5 ppm (</span><span lang="EN-GB">pyriproxyfen), </span><span lang="EN-GB">LC<sub>50</sub>: 14600 ppm, LC<sub>75</sub>: 27100 ppm (</span><span lang="EN-GB">neemazal</span><span lang="EN-GB">), LC<sub>50</sub>: 18.37 ppm, LC<sub>75</sub>: 88.60 ppm (</span><span lang="EN-GB">spinetoram</span><span lang="EN-GB">). These concentrations were tested against the immune cells (Total hemocyte count, Differential hemocyte count and hemocyte deformations). Depending on the present study, five types of hemocytes were observed as prohemocyte, granulocyte, plasmatocyte, oenocyte and spherulocyte. Total hemocyte count was significantly increased irrespective to the insecticide. All insecticide induced the prohemocyte while the other types were declined. However, the tested insecticide exhibited pathological symptoms on insect haemocytes morphology in the cell membrane, cytoplasm and nucleus. v</span>
Total haemocyte count,Differential haemocyte count,Rhynchophorus ferrugineus,Pyriproxyfen,neemazal,Spinetoram
https://eajbsa.journals.ekb.eg/article_24847.html
https://eajbsa.journals.ekb.eg/article_24847_3f90a930ea9d52869e206f257ea26a3e.pdf
Egyptian Society of Biological Sciences
Egyptian Academic Journal of Biological Sciences. A, Entomology
1687-8809
2090-0813
10
8
2017
12
01
Evaluation of novel natural product insecticide from The Egyptian Red Sea coast
99
107
EN
Aida,
S.
Kamel
Entomology Department, Faculty of Science, Benha University, Egypt
aida_momtaz@hotmail.com
10.21608/eajbsa.2017.24849
The present work aims to collect the most dominant marine soft corals: <em>Sarcophyton glaucum</em> from the Egyptian Red Sea coast, Gulf of Suez, Al- Ain Elsokhna. Evaluating their potential as insecticides and time of exposure against <em>Sitophilus oryzae</em> adults (Coleoptera: curculionidae). Three different solvents (ethanol, chloroform and aqueous extracts of soft corals <em>Sarcophyton glaucum</em> and five concentrations as (20, 200, 500, 1000 and 2000 ppm.) were used in all experiments. Screening analysis of active materials of soft corals <em>Sarcophyton glaucum </em>extracted by ethanol, chloroform and distilled water were terpene, alkaloids and tannins, respectively. The results of this work indicated that the ethanol extracts of <em>Sarcophyton glaucum</em> were achieved the highest mortality rate 100%against adults of<em> S. oryzae </em>at high concentration 2000 ppm. LC50 and LC95 values were recorded as 63.18 and 967.1 ppm. respectively, followed by concentration of ethanol extract at 1000 ppm after 96h. Meanwhile, chloroform achieved high mortality rate at 83.33% . Moreover, LC50 and LC95 were recorded at 166.9 and 3200.0 ppm., respectively. On other hands, mortality percentage by using aqueous extract of <em>S.glaucum</em> was recorded the lowest mortality rate of 63.33%. Moreover, LC50 and LC95 values were recorded 1036.0 and at 5550.0 ppm respectively, . Due to these results, we concluded that effects ethanol extracts from the soft corals <em>Sarcophyton glaucum</em> <em> </em>on<em> S. oryzae</em> had potential insecticidal activity followed by chloroform extract and at last came aqueous extract. Moreover, The mortality percentages were increased by increasing the concentration and time of exposure. These extracts of soft coral <em>S. glaucum</em> may be promising as a novel natural product which could be used as pesticides against <em>S. oryzae </em>adults. So, I would like to recommend these novel products from soft corals to be used, because they are considered eco-friendly insecticides on insects and do not affect on humans, animals and plants and prevent the environmental pollutions
Sitophilus oryzae,Extracts of soft corals ( Sarcophyton glaucum),insecticidal activity
https://eajbsa.journals.ekb.eg/article_24849.html
https://eajbsa.journals.ekb.eg/article_24849_231d5ab641371b3697556de9261382a4.pdf