2024-03-29T11:55:02Z
https://jppp.journals.ekb.eg/?_action=export&rf=summon&issue=7865
Journal of Plant Protection and Pathology
2090-3677
2090-3677
2016
7
6
Effect of Bee Venom Collecting on The Behavior of Honeybee Colonies
A.
El-Saeady
A.
Diab
I.
Shehata
E.
Nafea
A.
Metwaly
The present investigation studied bee venom collecting effect on the behavior of honeybee colonies such as (Hygienic and hoarding honeybees behavior, queen right and queen less). Hygienic behavior, the positive effect of using bee venom collection method on hygienic behavior, that increased this behavior (22%) of honey bee worker cells, Apis mellifera,while hoarding behavior in honey bees, Apis mellifera L., statistical analysis that there was no significant difference between before and after treatment in four colonies. on the other hand, there was an increase in feed conception after treatment, it that seems to the alarming or stimulation of worker honey bee by electrical impulses from bee venom collector so, it increasing the worker hoarding behavior. The queen less had negative effect on venom quantity, and there was positive relation between the number of combs and venom quantity. The relationship between certain characters of honey bee colonies (i.e. stored pollen, stored honey yield and areas, bee population, brood, and foraging activities) and bee venom produced by electrical impulses and quantity of bee venom which collected from colonies variability at different periods of active season showed significant variations in the venom amounts collected at different periods of active season.
2016
06
01
347
351
https://jppp.journals.ekb.eg/article_50576_7ca00f51653b615bf5942c60405cfdc9.pdf
Journal of Plant Protection and Pathology
2090-3677
2090-3677
2016
7
6
Efficiency of Sampling Techniques for Collecting Hymenopterous Insects Inhabiting Rice Nurseries
A.
Abdel-Salam
A.
Hendawy
Ghada
Abdel-Hamid
Four sampling techniques; pitfall traps, water pan traps and sweep net (in 2014 and 2015 rice seasons) and light trap (in 2015 season) were used to collect arthropods from rice nurseries. The traps were fixed during the nursery duration; April – May. Results of the first three traps revealed the occurrence of 42 and 81 hymenopterous individuals, in the first and second seasons, respectively. Most of the captured insects were found belonging to families Diapriidae (32 individuals in 2015 season), Eulophidae (8 individuals in 2014 season), Figitidae (11 individuals in the second season), Formicidae (12 individuals in the second season) and Mymaridae (13 individuals in the first season). The most efficient tool, in 2014 season, was water pan trap that collected 61.90% out of total catch, followed by pitfall trap (23.81%). This situation was reversed in the 2015 season, with pitfall trap occupying the first rank (51.85%), followed by water pan trap (41.98%). However, in both seasons, the sweep net technique captured the lowest catch. The modified light trap, used only in 2015 season, collected mainly Cataglyphis sp. (Formicidae), followed by Trichopria sp. (Diapriidae). The variable catches, in the current investigation, could be attributed to the type of the trap, insect behavior, and to the population density of the target insects.
Hymenopterous insects
rice nurseries
sampling methods
2016
06
01
357
360
https://jppp.journals.ekb.eg/article_50578_24eae95d50df4589608b5553be8318a8.pdf
Journal of Plant Protection and Pathology
2090-3677
2090-3677
2016
7
6
Effect of Faba Bean Weeds on The Population of Cowpea Aphid Aphis craccivora (koch.) And it’s Associated Predatory Insects
S.
Awadalla
S.
Beleh
M.
Bayoumy
Heba
Abd El-Aty
These trial was carried out to study the influence of weed cover on population abundance of Aphis craccivora (Koch.) (Hemiptera: Aphididae) and its associated predatory insects in faba bean fields during two successive growing seasons (2012/13 and 2013/14). The population abundance of cowpea aphid A. craccivora in weedy fields of faba bean reached the highest (99.25 and 93.75 individuals) populations during the two successive seasons, respectively. While, in free weedy fields, the highest populations of A. craccivora were 32.75 and 51.25 individuals during the two years, respectively. Results of statistical analysis showed that there was a significant difference in the average number of A. craccivora between weedy and free-weedy fields in the first and second seasons of plantation with the highest averages in weedy fields. The main predatory insects associated with A. craccivora in weedy faba bean fields or free weedy fields were Chrysoperla carnea (Steph.), Coccinella undecimpunctata L., Paederus alferii Koch., Scymnus syriacus Muslantand Orius laevigatus (Fiber). Weeds almost had significant effect of the number of observed predatory adults in faba bean fields. Further, the number of attracted predators to faba bean plants differed significantly in weedy fields during both seasons, but did not in free-weedy fields specifically in the first season.
Faba bean
free-weed fields
weedy fields
population
2016
06
01
361
367
https://jppp.journals.ekb.eg/article_50586_1a97028b4e85dfdabc899628b34d9f55.pdf
Journal of Plant Protection and Pathology
2090-3677
2090-3677
2016
7
6
Effect of Flowering Plants Surrounding Faba Bean Fields on The Phenology And Community Composition of The Cowpea Aphid Aphis craccivora Predators
M.
Bayoumy
S.
Awadalla
S.
Beleh
Heba
Abd El-Aty
The current work was carried out in faba bean fields at Sidi-Salem district, Kafr El-Sheikh governorate during two growing seasons (2012/13 and 2013/14) to study the effect of flowering plants on phenology and community composition of the cowpea aphid, Aphis craccivora (Koch.) predators. In the first field, replicates were marginally surrounded with a belt of flowering plants (Coriander, Corindrum saivum L.), whereas in the second one did not. Population of each predator species differed from season to season and from field to other. Although, the attracted percentage of each predator species differed from season to season, Chrysoperla carnea (Steph.) was the only species exhibited strong attractiveness in the field with flowering plant margins and contributed with the highest fate of occurrence in flowering plots of faba bean during both plantation seasons. It contributed with 29.10 and 22.60 % of the total attracted numbers. Whereas, Orius laevigatus (Fiber) contributed with the lowest fate of attractiveness (13.05 and 16.36%) to flowering plants during the first and second seasons. On the other hand, Paderus alfierii Koch and Coccinella undecimpunctata L. contributed with the highest fate of attracted predators to non-flowering plant fields.
Coriander
floral plants
population density
predator species
2016
06
01
369
376
https://jppp.journals.ekb.eg/article_50592_3cf6090f2b237171f47e4a5cbea822bb.pdf
Journal of Plant Protection and Pathology
2090-3677
2090-3677
2016
7
6
Some Ecological Aspects on Mango White Scale, Aulacaspis tubercularis and Associated Natural Enemies Infesting Mango Trees in Qalyubiya Govrnorate [(Hemiptera :Sternorrhyncha :Diaspididae)]
Nagwan
Hamdy
Ecological studies on scale insect infesting mango trees were carried out at the Farm of Faculty of Agriculture , Shoubra EL-Kheima throughout two successive years 2012 & 2013. Results showed that mango trees were infested by four diaspdid species. Aulacaspis tubercularis, Lepidosaphes pallidula, Parlatoria oleae, Lidingaspis floridana Seasonal abundance of these species revealed that A. tubercularis was the most dominate species. Two hymeopterous parasitoids, Aphytis mytiaspidis and Encarsia citrini and two predacious mites one from Cheyletidae and another from Stigmaeidae, were found associated with these species. Seasonal fluctuation of different developmental stages of A. tubercularis throughout the both years, recorded three peaks for total numbers of alive population, as well as three peaks for immature stages and two peaks for adult stages. This scale insect recorded its maximum activity during autumn and early winter seasons. The natural enemies found associated with this species recorded two main periods of seasonal activity. The first period winter season, while the second during late and early summer. This diaspid species recorded 3-4 generations per year throughout the both years. Therefore, it could be concluded that the proper time for spraying mineral oil to control this pest must be during autumn after harvesting the fruits where the most insect population of immature stages as well as to avoid harmful effects on natural enemies found associated with these scale insects
Aulacaspis tubercularis
Diaspididae
Seasonal activity
natural enemies
Number of generation
2016
06
01
377
383
https://jppp.journals.ekb.eg/article_50595_8f65e886457f23047286f2e748340f44.pdf
Journal of Plant Protection and Pathology
2090-3677
2090-3677
2016
7
6
Physiological Insecticidal Activity of Triflumuron as Insect Growth Regulator Against Spodoptera littoralis (Boisd.)
A.
El-Sabrout
H.
Zahran
Effects of triflumuron (Baycidal 25%) on newly fifth larval instars of Sopdoptera littoralis were studied by a topical bioassay for the doses of 0.01, 0.1, 1, 5 and 10 μl/larva. The growth inhibition percentages were calculated during the experiment until 72 hours from the treatment, and were ranged between 8.7 to 58.53 %. Larval mortality percentages ranged between 40 and 82.5 %, while it was 2.5% in the control. The results showed reduction in the pupae weight values of S.littoralis, these values were between 239.25 to 178.28 mg while it weighed 250.8 mg in the control. Inhibition of adult formation percentages were calculated from larval stage until the adult formation, were ranged between 57.5, 92.5%, while it was 5% in the control. The histological studies illustrated heavily destruction of the reproductive tract of male when triflumuron were applied. Sex ratio of male (SR) was affected and ranged between 47.3 to 100%. Also, on the other hand, the lethal dose of triflumuron (LD50 =0.006 μl/Larva) on chitin formation caused inhibition in the larval growth of the cotton leafworm. The chitin formation ratio value displayed 44.96 mg/gm for the control, while it was 15.38 mg/gm with LD50 =0.006 μl/Larva.
Triflumuron
Spodoptera littoralis
Growth inhibition
Chitin formation
Pupal weight and Sex ratio
2016
06
01
385
389
https://jppp.journals.ekb.eg/article_50602_6670f4593b8e7a591999169755977963.pdf
Journal of Plant Protection and Pathology
2090-3677
2090-3677
2016
7
6
Comparative Toxicity of Some Insecticides Against Pectinophora gossypiella (Saunders) and Chrysoperla carnea (Stephens)
Hemat
Moustafa
Comparative toxicity of four insecticides against the pink bollworm Pectinophora gossypiella (Saunders) as well as the predacious insect, Chrysoperla carnea (Stephens) were evaluated under laboratory conditions. Field recommended concentrations of the tested insecticides were used in this study. For P. gossypiella, the ovicidal action of the tested insecticides revealed that the three days old eggs were more effective than the one day eggs with the exception of Dimilin treatment where the one day old eggs showed slightly more susceptible than three days old eggs. Concerning one day old eggs, the highest ovicidal activity was noticed in case of Dimilin treatment where the eggs hatchability exhibited 82.61% with reduction of 9.67% compared with untreated eggs, whereas, Axon insecticide caused the highest ovicidal effect on three days old eggs where the corresponding eggs hatchability recorded 77.33% with reduction of 16.07% compared with the untreated eggs. On the other hand Spintor showed the least effect on one and three days old eggs. The corresponding eggs hatchability were 89.47 and 88.00% with reduction rate of 2.17 and 4.49%, while the eggs hatchability rates in untreated eggs one and three days old were 91.45 and 92.14%; respectively. The same trend of the ovicidal activity associated to the exposure of one and three days old eggs of the predatory insect to the tested insecticides. Whereas the ovicidal action was much remarkable higher in case of the predatory insect eggs than the pink bollworm eggs. According the effect of tested insecticides on the pupal stage of the pink bollworm and the predatory insect and their latent effect on the biotic potential of the two target organisms, Axon was the superior insecticide against one and three days old pupae of the two targets. Followed by Dimilin against one and three days old pupae C. carnea. Dimilin showed the highest latent effect on the pink bollworm male adult and lowest latent effect on the female adult resulted from the two aged pupae. Spintor and Pasha caused lowest latent effect on C. carnea adult emergence. Axon and Dimilin showed highest latent effect on both P. gossypiella and C. carnea egg hatchability.
Pectinophora gossypiella
Chrysoperla carnea
toxicity
biology
2016
06
01
391
395
https://jppp.journals.ekb.eg/article_50607_a39ce1c4751048378663546907bebbce.pdf
Journal of Plant Protection and Pathology
2090-3677
2090-3677
2016
7
6
Propolis Isolates Gathered from Different Regions in Egypt Affects Baculovirus-Uv Protection
A.
El-Helaly
W.
Sayed
Three natural propolis derived from three different Egyptian regions (Alexandria, Dakahleya and Giza) containing different groups of antioxidants were tested as UV- protectants additives of Spodoptera littoralis nucleopolyhedro virus (SpliNPV) suspension, to prolong the virus activity. Theubromo cacao additive was tested as previously documented material that gives good protection. Screening results were based on bioassays, four main parameters were calculated Originally Activity Remaining (OAR) %, LIT50 (Median Lethal Inactivation Time), Potency and Reduction % of the virus after exposure to UV source. This investigation had three steps, two at the laboratory and the last one was at the field. Field evaluation was during June to August 2015 on tomato plants at eastern farm of Faculty of Agriculture, Cairo University. Propolis additives reserved virus activity for 30.788, 46.407, 75.325 LIT50 Hours for Alexandria, Dakahleya and Giza isolates; respectively. Theubromo cacao additive gave 58.011 LIT50 value while the virus alone treatment was only 14.479 hour at the field. The obtained result demonstrated that certain propolis isolates gave better protection than cacao which may lead in the future to analyze the groups of antioxidants or flavonoids responsible for this protection.
antioxidants
baculovirus activity
field-biocontrol application
Propolis
Spodoptera littoralis NPV
virus protection
2016
06
01
397
403
https://jppp.journals.ekb.eg/article_50610_27425e15a7f9bc5f6c561ef839a499bc.pdf
Journal of Plant Protection and Pathology
2090-3677
2090-3677
2016
7
6
Biological Characteristics and Accumulated Thermal Heat Units of Tomato Borer, Tuta Absoluta (Meyrick)
A.
Abdel Kareim
S.
Moustafa
Engy
El-Tanahy
The present experiments were conducted under laboratory conditions to study the effect of different constant temperatures (25, 30 and 350C) on the development and mortality of the different stages of tomato leafminer, Tuta absoluta (Meyrick) , and to determine the thermal units required for T.absoluta development in relation with degree-days (DD's).The incubation period lasted 5.0 ± 0.6, 4.0 ± 0.6 and 3 ± 0.6 days for eggs at constant temperatures 25, 30 and 35 oC, respectively. The duration of the larval stage was 18.1± 0.2, 12± 0.2 and 8.5± 0.2 days at 25, 30 and 35 oC, respectively. The pupal average durations were 8.5± 3.1, 5.8± 1.4 and 5.2 ± 1.4 days at 25, 30 and 35oC, respectively. The total developmental periods from egg to adult emergence were 31.6 ±4.5, 21.9 ±1.8 and 16.7 ±1.2 days for 25,30 and 35 oC, respectively. These results proved that all the developmental periods decreased with increasing temperature. The thresholds of development (t0) were 10.4, 16.3, 8.6 and 13.8 for eggs, larvae, pupae and all immature stages, respectively. The mean thermal constant required for development of T. absoluta eggs, larvae and pupal stages was 75.5 DD's, 160.8 and 182.3 degree-days, respectively
Tuta absoluta
thermal units
degree-days
Development
2016
06
01
405
410
https://jppp.journals.ekb.eg/article_50622_c90033001076fa103f579e3eee1318d0.pdf
Journal of Plant Protection and Pathology
2090-3677
2090-3677
2016
7
6
Egyptian Barley Cultivars Infestation by Rhyzopertha dominica (F.) as Influenced by Seed Biochemical and Chemical Composition
Samah
Mariey
H.
Elzun
Eman
Mohamed
Amal
Hamza
Barley is an important food crop particularly for animal feeding but in Egypt, there is a shortage in barley supplies. Unfortunately, this crop is infested by several stored product insects, including Rhyzopertha dominica(F.). These insect pests are usually controlled by chemical application. However, developing barley cultivars resistant to insects is an important approach. Therefore, relationships between chemical traits of fifteen barley cultivars and infestation by R. dominica(F.) were investigated. The results showed that covert barley (Giza123,Giza125,Giza134 and Giza2000) were the lowest infested cultivars by R. dominica. It produced the least numbers of adult progeny (32, 39, 36 and 51.3 insects) from thirty gram grains sample, the least reduction of weight loss (6.3, 5.3, 5.3 and 6.9%) and the least of infested grains percentages (9.1, 6.9 and 11.6% respectively). The highest insect infestation were recorded in naked barley(Giza131, Giza135 and Giza136) where the number of adult progeny were 210, 169 and 201 insects, the weight loss were 33.3, 23.3 and 31.4% and the infested grains percentages were 60.7, 45.0 and 63.6%, respectively. Results of chemical component analysis showed that the lowest infestations were in cultivars of low protein content and high content of phenol, fiber and ash, while, the highest infestations in naked barley were in cultivars of high content of protein and low content of phenol, fiber and ash. Results of SDS-PAGE in soluble protein revealed a total number of 13 bands, two common bands were monomorphic and the others were polymorphic, and there were three specific bands found in naked barley which were higher infested than covert barley. Therefore, it should be taken into consideration to select a line with high yield, good quality, more tolerant to insect infestation to avoid insecticide usage.
Hordeum vulgare
SDS-PAGE
grain chemical composition
Rhzopetha dominica
Infestation
2016
06
01
411
416
https://jppp.journals.ekb.eg/article_50626_066c3e6449929961f410e09127a0e215.pdf