Influence of Some Varieties on the Main Insect Pests Attacking Faba Bean Plants

Abstract

The present experiments were carried out at the experimental farm of Sakha Agricultural Research Station, Kafr El-Sheikh Governorate during two successive seasons; 2011/12 and 2012/13 to study the susceptibility of some varieties on the main insect pests attacking faba bean plants.The highest average number of Aphis craccivora (Koch.) was recorded on Sakha 4 variety which had the highest of total Carbohydrate (51.58%) and the lowest of total Phenole (0.528%) with an average number of 287.14±80.53 and 171.56±35.63 indiv./20 plants followed by Sakha 2 variety (233.00±91.53 and 134.67±39.50 indiv./20 plants) during the two successive seasons, 2011/12 and 2012/13, respectively.The highest average number of Empoasca spp. was recorded on Giza 3 variety which had high crude Protein (18.91%) with an average number of 70.00±8.71 and 116.92±18.73 indiv./ 100 leaflets followed by Sakha 4 in the first season (63.42±15.47 indiv./ 100 leaflets) and Giza 843 variety in the second one (110.92±15.78 indiv./ 100 leaflets).The highest average number of Nezara viridula L. was recorded on Sakha4 in the first season (total Carbohydrate, 51.58%) and Giza 3 in the second one (crude Protein, 18.91%) with an average number of 4.57±1.44 and 7.00±0.47 indiv./20 plants during the two seasons, respectively. Statistical analysis revealed insignificant differences among faba bean varieties during the two seasons of study.The highest average number of Liriomyza trifolii (Burgess) was recorded on Giza3 variety which had high C. protein (18.91%) and low Silica (1.54%) with average number of 157.6±3.4 and 201.5±64.65 larvae/ 100 leaflets followed by Sakha 3 and Sakha 1 variety (156.00±5.5 and 198.6±51.14 larvae/ 100 leaflets) during the successive seasons, respectively.Statistical analysis revealed significant differences among faba bean varieties and the average number of A. craccivora, Empoasca spp. and L. trifolii during the two seasons of study.The results showed insignificantly or significantly positive relationship among varieties contents from C. protein, T. lipids and T. phenole with Empoasca spp., N. viridula and L. trifolii while was negative relationship with T. carbohydrate and silica. In contrary, the results showed that significantly positive relationship among varieties contents from T. carbohydrate and silica with A. craccivora while was significantly negative relationship with C. protein, T. lipids and T. phenole.

Age Distribution Patterns of Mite ,Some Predator and Piercing Sucking Insects Inhabiting Faba Bean as A Method for Prediction of Reproductive Capabilities and Their Relationships to Phenols Leaf Content

“…. These results are in contrast with Awadalla et al . (2013) who mentioned that population density of Aphis craccivora correlated with total phenols but the correlation was negative significant on different varieties of faba bean .…”

“…Also these results are in agreement with (Awadalla et al .,2013;Elsadany and El-Shamy,2016) they mentioned that the correlation between Empoasca spp . and total phenols was positive but not significant on different varieties of faba bean .…”

EFFECT OF FABA BEAN – CEREALS INTERCROPPING AND NITROGEN FERTILIZATION ON THE INFESTATION BY THE LEAFMINER Liriomyza trifolii (BURGESS) ON FABA BEAN PLANTS.

“…can cause both direct and indirect damage, such as; disease transmission, seedling death, crop reduction, fruit damage, and reduction of the aesthetic value of ornamental plants, in addition to plant quarantine problems (Abdul Rassoul and Al-Saffar, 2013). Difference in plant susceptibility and plant resistance to the insect attack has been reported for most faba bean cultivars (Hannou and Hegazi, 1996;Abdallah et al, 1996Abdallah et al, , 2000El-Khouly et al, 1997;Mohamed and Salman, 2001;Abdel-Samad and Ahmed, 2007and Awadalla et al, 2013 . As leafminer will continue to be important pest of high value crops, insecticides will continue to be an important component for leafminer management, therefore it is imperative to continue to refine the use of insecticides that target leafminer.…”

Effect of some Essential Oils Against Green Leafhopper, Empoasca decipiens Paoli (Hemiptera: Cicadellidae)

“…Several investigators recorded the role of some leafhopper species in transmitting the pathogens of plant diseases (Nielson, 1968). The fauna of this species was studied in Egypt in the field of vegetable crops and fruit trees (Awadalla et al, 2011;Shalaby et al, 2012;Awadalla et al, 2013 and2014).…”