An experiment was carried out to study the effect of some agricultural and chemical treatments on two serious insects i.e. leaf miner, Tuta asoluta (Meyrick), and the cotton whitefly Bemisia tabaci (Genn.) that infest tomato plants, as well as the influence on the growth, fruit yield and its quality were evaluated. The trail was carried out in a sandy soil at Amoun Agricultural Association, Eltal El Kabier, Ismailia Governorate, Egypt during two autumn seasons of 2013 and 2014. The experiment included 7 treatments as follows: covering tomato plants with agryl, white and green net as a row covering tunnels, dusting with Sulfur (repellent the insect) as the safety material for human and environmental comparing chemical pesticides i.e. Actara using it as foliar spraying or soil drench and

The means of biological control methods in which entomopathogens are being applied to crops has been adopted for several years. However, endophytic entomopathogenic fungi could provide plants with a longer protective effect compared to usual bio-control agents' applications since they are being internally associated with plants and could grant them more sustainable protection. This study was an attempt to isolate the endophytic fungi from Hytech 2031, Pioneer 3444 and SC 132 maize hybrids and investigating their pathogenicity against Sesamia cretica, Pectinophora gossypiella and Spodoptera littoralis in different larval instars. Five fungi were isolated from the maize hybrids, i.e. Aspergillus flavus MRDS 301, Curvularia lunata MRDS 302, Chaetomium madrasense MRDS 303, Alternaria alternate MRDS 304 and Aspergillus flavus MRDS 305. C. lunata MRDS 302 and C. madrasense MRDS 303 treatments showed insecticidal effect (100 %) against S. cretica 1st instar larvae. All treatments against S. cretica significantly reduced the weight of the resulting full-grown instar larvae. C. madrasense caused the highest mortality to P. gossipiella 1st instar larvae compared to other treatments. In general, A. flavus MRDS 305 was more effective than A. flavus MRDS 301 against all the tested pests. Soil infestation was a highly effective method of inoculation to introduce the fungus C. madrasense inside maize plants since the fungus was isolated from both roots and leaves.

Two field experiments were conducted at Gemmeiza Agriculture Research Station; the first was under normal irrigation and the second was under water stress by skipping the third and fourth irrigations during the two seasons 2018 and 2019, to study the response of 16 maize hybrids to water stress. A strip plot design with four replications was used in each year. Combined analysis across two years revealed that, significant or highly significant differences were detected between two years for the most of traits. Highly significant differences were found between normal irrigation and water stress treatment for all studied traits. Hybrids showed highly significant differences for all studied traits. The highest single crosses for grain yield plant-1 were SC 128 followed by SC 132 under normal irrigation and water stress conditions, meanwhile the highest three-way cross was TWC 321 under normal irrigation and TWC 368 under water stress. Single crosses SC 178 and SC 176 also three-way crosses TWC 352 and TWC 368 were able to tolerate drought. Correlation coefficient was significant and positive between each of ear length and number of kernels row-1 with grain yield plant-1 under normal irrigation and between 100 kernel weight and grain yield plant-1 under normal and stress irrigation.

Background: Sugar beets-winter is the primary sugar planting technique in arid Egypt, This study's major goal was to increase the growth of sugar beetroot cultivars in an arid region by applying organic fertilizers. It will be easier to increase crop performance under salinity if we have a superior grasp in terms of the molecular and physiological mechanisms driving salt acceptance. Results: The sustainability of sugar beets, a novel crop in this region, is still unknown. Consequently, a field experiment four sugar beets cultivars (Casupia-Salama-Sahar and Faten) under three organic fertilization (0, 11.905, and 23.810 ton/ha). Field data were used to incorporate the capacity of 17 morphological, yield-related, and physiological features as indicators for detecting salt tolerant, net ecosystem economic advantages, and economic benefits. Conclusions: Salama cultivar significantly surpassed other studied cultivars by 8.5%. The organic fertilization considerable impact on application rate, facilitate the elements and reduce the damage of the salts. Taking into account modifications to the organic fertilization traces, the Salama cultivar with (23.810 ton/ha), which produced the greatest net benefits to the ecosystem in terms of both economic and ecological advantages, and a 167 % Salama greater net economic benefits to the ecosystem than with the status quo Casupia cultivar and Organic Fertilization application rate (0 ton/ha), employing a comprehensive approach that combines Salama cultivar and Organic Fertilization application contributes to improvements sustainable sugar beets production systems in the El-Tur area, South Sinai, Egypt and places with comparable ecological characteristics.