The laboratory experiments were conducted at the unit of biological
control, Insectary laboratory of the Department of Crop Protection,
Faculty of Agriculture University of Khartoum, Shambat, during the
period from the beginning of May 2014 to the beginning of January
2015. The experiments were carried out under semi-field conditions
(cage- experiment). The objectives of the study were to study
investigation and evaluation the susceptibility of five ecotypes of
(Pearl millet Pennisetum glaucum var.) on the life system of the
solitary African Migratory Locust. The main objective was to detect
the most preferred food variety on the development of nymphal instar
(3rd & 4th in stars) of the African Migratory Locust Locusta migratoria
migratorioides (Lin.). Five different experiments with five ecotype
varieties of Pearl millet Pennisetum glaucum var were setup. Each
experiment with three replications were applied topically on the 3rd
and 4th nymphal instars. Each treatment replicated 3 times. Each
experiment took duration of four days. Millet plants were gown in
ground basin and plastic cup to feed the locusts and for experiment
application techniques. Data were recorded daily after 24 hours from
beginning of experiments and were followed until the fourth day. The
food preference and ecotype susceptibility evaluation was based on
Amount of food-intake in gram, Weight of food-ingested and digested
in gram, percentages, and Amount of weight of feces in gram.
The results showed the significant difference of susceptibility of five
varieties ecotype of pearl millet. The susceptibility of feeding by 3rd
and 4th nymphal instars was clearly observed in all ecotypes.
According to the study results showed the preference of ecotypes by
nymphs was increased according to increasing of application time.
The high one was Bayouda-late maturing compared to four other
ecotypes of treatments. Then Kano-late maturing, Wad elahow-late
maturing, Bayouda-early maturing and Dembi-early maturing
respectively. During the experiments were noticed that the preference
of five ecotypes were high in the first reading and third reading of
However the results revealed that the susceptibility of five ecotypes of
pearl millet Pennisetum glaucum var, according to remain amount of
feces in any ecotype variety. The least amount of reminder feces was
in Bayouda-late maturing ecotype, this means that the biggest part of
the food-intaken was ingested, digested and assimilated according to
the four others ecotypes.
The bigger percentages of ingested amount of food consumption for
five ecotypes of pear millet Pennisetum glaucum var, with 3rd and 4th
instars of African migratory locust ranked as above mentioned.
The research concludes that further works on evaluation of
susceptibility of pearl millet varieties with different pest, particularly
in migratory locust is recommended, thus the crucial role in order to
detect the target palatable variety as a trap in pest management
Salim, K (2021). Susceptibility of five pearl millet (Pennisetum glaucum L. Ecotypes to the nymphal instars of the Migratory locust Locusta migratoria migratorioides (Reiche and Farmaire) infestation.. Afribary. Retrieved from https://afribary.com/works/susceptibility-of-five-pearl-millet-pennisetum-glaucum-l-ecotypes-to-the-nymphal-instars-of-the-migratory-locust-locusta-migratoria-migratorioides-reiche-and-farmaire-infestation
Salim, Kholdi "Susceptibility of five pearl millet (Pennisetum glaucum L. Ecotypes to the nymphal instars of the Migratory locust Locusta migratoria migratorioides (Reiche and Farmaire) infestation." Afribary. Afribary, 19 May. 2021, https://afribary.com/works/susceptibility-of-five-pearl-millet-pennisetum-glaucum-l-ecotypes-to-the-nymphal-instars-of-the-migratory-locust-locusta-migratoria-migratorioides-reiche-and-farmaire-infestation. Accessed 10 Aug. 2022.
Salim, Kholdi . "Susceptibility of five pearl millet (Pennisetum glaucum L. Ecotypes to the nymphal instars of the Migratory locust Locusta migratoria migratorioides (Reiche and Farmaire) infestation.". Afribary, Afribary, 19 May. 2021. Web. 10 Aug. 2022. < https://afribary.com/works/susceptibility-of-five-pearl-millet-pennisetum-glaucum-l-ecotypes-to-the-nymphal-instars-of-the-migratory-locust-locusta-migratoria-migratorioides-reiche-and-farmaire-infestation >.
Salim, Kholdi . "Susceptibility of five pearl millet (Pennisetum glaucum L. Ecotypes to the nymphal instars of the Migratory locust Locusta migratoria migratorioides (Reiche and Farmaire) infestation." Afribary (2021). Accessed August 10, 2022. https://afribary.com/works/susceptibility-of-five-pearl-millet-pennisetum-glaucum-l-ecotypes-to-the-nymphal-instars-of-the-migratory-locust-locusta-migratoria-migratorioides-reiche-and-farmaire-infestation