Curtailment of root-knot nematode Meloidogyne incognita on sugar beet by using a novel strategy

Abstract

Two field experiments were conducted in the west Nubaria district, located at Abu El-Matameer Center, the Northern Sector, (30°47'40"N latitude and 30°4'58"E longitude), El Behaira Governorate, Egypt 2022/23 and 2023/24 seasons to evaluate a recent strategy based on carried liquid chemical nematicides i.e., Nemakick®, Oxineem El-Nasr® and Tervigo® as well a biological one Fornem X 5® on rough wheat bran, against root-knot nematode, Meloidogyne incognita associated with sugar beet and its effects on yield and quality. Results included that all treatments reduced the examined nematode parameters as well as increased yield and quality characteristics. Exceptionally, Nemakick® achieved the highest reduction percent 58.9, 72.0 and 58.9 % with the number of J₂, root gall index and host efficiency respectively, and achieved the highest α amino nitrogen reduction percent 35.8 %, followed by Tervigo®. Likewise, achieved the highest increasing percent in quality chlorophyll a, chlorophyll b and charotain with 28.8, 86.3 and 37.5 % respectively, as well as total soluble solids TSS %, quality % and Sucrose % with increasing percent 19.4, 3.5 and 12.1 % respectively, furthermore the highest increasing in quantity were 24.7 and 3.5 tons / feddan by increasing percent 45.6 % with root yield and sugar yield respectively, followed by Tervigo® . Mostly, using a dose of 15 kg / feddan gave the highest reduction in M. incognita parameters and the highest increase in sugar beet crop quantity and quality than using 10 kg / feddan with all treatments.