LEPIDOSAPHES BECKII PDF

and purple scale (Lepidosaphes beckii Newm.). The outbreak of scales is associated with mild climatic conditions, especially high relative humidity in the air and. Lepidosaphes beckii (Newman) (Hemiptera: Diaspididae) seasonal abundance on sour-orange, Citrus aurantium trees was carried out in Kafr El-Sohaby, at. The ecology of the purple scale Lepidosaphes beckii (Newman) (Hemiptera: Diaspididae) was studied on citrus, in the area of Kalamata.

Author: Dorr Meztigor
Country: Zambia
Language: English (Spanish)
Genre: Education
Published (Last): 22 July 2014
Pages: 137
PDF File Size: 11.33 Mb
ePub File Size: 19.66 Mb
ISBN: 177-1-75866-879-8
Downloads: 34034
Price: Free* [*Free Regsitration Required]
Uploader: Kigarn

Its feeding causes yellowish halos to develop on leaves; on young fruit, the feeding sites remain green. Entomological Society of America members Lepidosphes in via society site. By using this site, you agree to the Terms of Use and Privacy Policy. To purchase short term access, please sign in to your Oxford Academic account above. Heavy infestation can also lead to leaf fall and leaf and shoot malformation; and in extreme cases, host death. The small insects attach themselves to leaves, fruits and small branches and cause injury by sucking the tree’s sap.

lepidisaphes

Lepidosaphes beckii ยท

Armourd scales on citrus. May increase citrus red mite becjii. Retrieved from ” https: Unfortunately, we cannot provide individual solutions to specific pest problems. Articles with ‘species’ microformats Commons category link is on Wikidata. Coccus lepiosaphes Newman, [1] Mytilaspis flavescens Mytilaspis citricola Mytilaspis fulva Lepidosaphes pinnaeformis Mytilococcus beckii Cornuaspis beckii.

Purple scale is completely controlled in the Middle East by the introduced aphelinid ectoparasitoid Aphytis lepidosaphes Compere, which is attracted to the purple scale by a kairomone. Don’t already have an Oxford Academic account? Always read the label of the product being used. However, such combinations are highly detrimental to natural enemies, possess high mammalian toxicity and should be avoided except in extreme emergencies.

  BRANDYS TOKSYKOLOGIA PDF

Reducing the rate of carbaryl increases survival of natural enemies. Not all registered pesticides are listed. Host-seeking stimulants kairomones for parasitoids of purple scale insects. For use on all varieties. Mature males are winged insects that search out the immobile females.

Cookies on Plantwise Knowledge Bank Like most websites we use cookies. Damage to fruit occurs in heavy infestations, where spotting and often deformity of fruits affects market value.

Purple scale may be a major pest of citrus, attacking the leaves and fruit. Aphytis lepidosaphes is particularly successful at L.

It prefers the inner parts of trees and usually begins to be noticed in citrus orchards as they reach their th year. Annals of the Entomological Society of America Don’t have an account? Hare and Morgan report on the mass-priming of Aphytis sp. Genetic Structure of Liriomyza trifolii Diptera: After mating, females lay 40 to 80 eggs under the cover. Because this parasite is not commercially available, conserve naturally occurring populations of this beneficial in the grove. Sign In or Create an Account.

Views Read Edit View history. Thus, spread of infected material can be reduced by pruning and allowing adequate spacing between plants throughout cultivation. The median lobes are triangular, clearly separated; the second pair of lobes are bi-lobed, the third pair occur as lightly-sclerotized protrusions.

Aphytis melinus, which has been used in the widespread control of the red scale Aonidiella aurantiialso attacks L. Sign In Forgot password?

This page was last edited on 22 Marchat This beckik is also available for rental through DeepDyve. The fifth cluster, of about pores, is situated above the anus. They concluded that treatment should be begun as soon as scales are detected, even in small numbers. If a spray is needed, it may be sufficient to spot treat i. Oxford University Press is a department of the University of Oxford.

  EL PIRATA GARRAPATA EN AFRICA PDF

Lepidosaphes beckii

Lepidosaphes beckii also known as purple lepidosapphesmussel scalecitrus mussel scaleorange scalecomma scale and mussel purple scale [2] is a scale insect that is a pest of Citrus trees. The role of parasitoids in the control of the purple scale, Lepidosaphes beckii New.

The most effective purple scale parasite is Aphytis lepidosaphes, a parasitic wasp that is generally distributed in areas where purple scale occurs. Purple scale may be mass-reared on green lemons, potatoes and banana squash. This article incorporates public domain text from the reference [1]. Parasites usually provide good control of purple scale.

This parasite develops externally on the body of immature scales under the scale cover. Perivulvar pores in five clusters, aboutin two groups on either side of the anus. In Greece substantial reductions in pest numbers were attributed to the parasitic mite Hemisarcoptes sp. See label for additional restrictions. Areas surrounding scales remain green long after the rest of the fruit ripens. They are covered with a mass of waxy threads until about half grown; at that time a brown cover with a purplish tinge forms.