Effect of Nitrogen Fertilization on Aphis gossypii (Homoptera: Aphididae): Variation in Size, Color, and Reproduction

  title={Effect of Nitrogen Fertilization on Aphis gossypii (Homoptera: Aphididae): Variation in Size, Color, and Reproduction},
  author={Eviatar Nevo and Moshe Coll},
  booktitle={Journal of economic entomology},
  • E. Nevo, M. Coll
  • Published in
    Journal of economic…
    1 February 2001
  • Biology, Medicine
Abstract The effect of nitrogen fertilization on Aphis gossypii Glover color and size, fertility, and intrinsic rate of increase (rm) was studied on cotton plants. [] Key Method Nitrogen fertilization treatments consisted of 0, 50, 100, and 150% of the agronomic recommended level. Adult and nymph densities, as well as rm, were positively correlated with nitrogen fertilization. Aphid body length, head width, and darkness of color were recorded in populations on cotton plants fertilized with 100% nitrogen or…
Influence of Nitrogen Fertilization on Biology of Aphis Gossypii (Hemiptera: Aphididae) Reared on Chrysanthemum Iindicum (Asteraceae)
The present data suggest that plant nitrogen content is an important factor contributing to the increase severity of the cotton aphid as a pest of chrysanthemum.
Performance and population growth rate of the cotton aphid, and associated yield losses in cucumber, under different nitrogen fertilization regimes
Performance and population growth rate of the cotton aphid Aphis gossypii Glover, and the yield losses inflicted by that pest, were studied in relation to varying nitrogen fertilization levels (90,
Effect of Nitrogen Fertilizer on the Intrinsic Rate of Increase of Hysteroneura setariae (Thomas) (Homoptera: Aphididae) on Rice (Oryza sativa L.)
Second-generation aphids produced on 150% N plants had significantly higher survivorship, fecundity, and rm regardless of the N treatment of plants that parents fed on, indicating that the effect of a high N diet was expressed in a second generation of aphids.
Effect of nitrogen fertilization on life table parameters and population growth of Brevicoryne brassicae.
The greenhouse study on aphid population growth on various treatments indicated that 21 day after infestation, highest number of aphid and lowest number of winged were found on treated cabbage with 150% of recommended nitrogen fertilization, which means that higher nitrogen fertilizer improves the suitability of oilseed rape for cabbage aphid whose performances are then increased.
Influences of fertilization on Aphis gossypii and insecticide usage
Reduction in time to harvest could result in significant reduction of insecticide usage by reducing the time for aphid population growth and high fertilization together with minimal runoff may be a useful tactic to an integrated pest management programme for managing A. gossypii on potted chrysanthemums.
Influences of fertilization on Aphis gossypii and insecticide usage
Abstract:  Fertilization levels for ornamental crops may influence pest population dynamics, crop quality, and pest management strategy. We examined the effect of fertilization on population growth
Demographic parameters of Lipaphis erysimi on canola cultivars under different nitrogen fertilization regimes.
Management of nitrogen fertilization and cultivation of resistant cultivar could be suitable eco-friendly strategies to manage mustard aphid population.
Reproductive performance of striped mealybug Ferrisia virgata Cockerell (Hemiptera: Pseudococcidae) on water-stressed cotton plants subjected to nitrogen fertilization
Proper fertilization and irrigation management relieving plant from stress can be helpful in avoiding generalized infestations of striped mealybug on cotton.
The effect of nitrogen fertilizer on the cotton aphid (Aphis gosypii) when grown in the cucumber (Cucumis sativus)
Overall, it was found that nitrogen affected the progeny number, population, and life span of A. gossypii.
Variation of life‐history parameters of Planococcus ficus (Hemiptera: Pseudococcidae) in response to grapevine nitrogen fertilization
The results show that high nitrogen regimes increase the reproductive performance of P. ficus on grapevines and point out the importance of implementing balanced fertilization plans in grapevine IPM programs to reduce population densities and prevent insect outbreaks.


Phenotypic Plasticity in Australian Cotton Aphid (Homoptera: Aphididae): Host Plant Effects on Morphological Variation
The inescapable conclusion from this study is that A. gossypii in Australia is phenotypically plastic and its morphology is affected by the host plant far more strongly than by genetic differences (if any) among means of local populations.
Dwarf Phenotype of the Cotton Aphid, Aphis gossypii Glover (Hemiptera: Aphididae)
An orthogonal experiment demonstrated that production of yellow dwarfs can be induced by presumed less-suitable host-plant species at temperatures of 15 ° and 25 °, but not 20 °C, and possible advantages of the yellow dwarf developmental pathway are discussed.
The nutritional quality of phloem sap utilized by natural aphid populations
It is suggested that EDTA‐exudation may be a useful technique to study nutritional correlates of aphid life cycles, e.g. the time of migration between primary and secondary plant hosts.
Herbivory in relation to plant nitrogen content
The evidence that N is scarce and perhaps a limiting nutrient for many herbivores, and that in response to this selection pressure, many Herbivores have evolved specific behavioral, morphological, physiological, and other adaptations to cope with and uti­ lize the ambient N levels of their normal haunts is examined.
Randomization tests : Example using morphological differences in Aphis gossypii (Homoptera: Aphididae)
A new methodology is introduced for using randomization tests to determine if the average of several observations is different from a constant, and an extension of the method is used when the null hypothesis states that there are differences.
Global Population and the Nitrogen Cycle
During the 20th century, humanity has almost quadrupled its numbers. Although many factors have fostered this unprecedented expansion, its continuation during the past generation would not have been
The purpose of this note is to describe a modified clip cage design that is suitable for use on irregular cylindrical surfaces as well as on leaves.
A phenol‐hypochlorite manual determination of ammonium‐nitrogen in Kjeldahl digests of plant tissue
Abstract A phenol‐hypochlorite (Berthelot) procedure for determining NH4‐N in acid digests of plant tissue is described. EDTA suppresses Cu interference and precipitation of hydroxides and
Parthenogenetic reproduction and the rate of increase in aphids