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Comparative assessment of the parasitoid community of Delia radicum in the Canadian prairies and Europe: A search for classical biological control agents ☆
Erroneous records of Aleochara bipustulata from North America: an assessment of the evidence
- K. S. Hemachandra, N. Holliday, J. Klimaszewski, P. Mason, U. Kuhlmann
- Environmental ScienceThe Canadian Entomologist
- 1 April 2005
It is found that there is no evidence that A. bipustulata occurs in North America, despite numerous publications reporting the presence of the species.
Modified technique for the preparation of specimens of sternorryncha for taxonomic studies.
This paper provides methods for preservation and the preparation of temporary and permanent slide mounts, using less toxic reagents, for insects belonging to Order Hemiptera: Suborder Sternorrhyncha.
Variations of Incidence, Types of Virus Diseases and Insect Vector Populations of Tomato (Solanum lycopersicum L.), Grown in Different Agroecological Regions of Sri Lanka under Two Crop Management…
There was no significant difference between the two types of management systems in terms of virus disease incidence indicating the equal efficiency of the tested IMP treatment and existing pest control method on virus disease management.
Mealybugs (Hemiptera: Pseudococcidae) species on economically important fruit crops in Sri Lanka.
Treatments that provided better germination were: removal of distal portion with and without water soaking, H 2 SO 4 for 60 min, and boiling water for 60 and 30 sec.
Potential for Mass Rearing of the Egg Parasitoids, Trichogramma chilonis and Tricogramma achaeae (Hymenoptera: Trichogrammatidae) on Corcyra cephalonica Eggs
Performance of emerging adults in terms of parasitism significantly varied with storage duration, and bee honey was a better type of food source compared with glucose, fructose and sucrose for feeding parasitoids.
Spatial patterns of Trybliographa rapae parasitism of Delia radicum larvae in oilseed rape and cauliflower
From the depth distribution of larval feeding sites in the field, it is inferred that between 4% and 20% of Delia larvae may be in a physical refuge from T. rapae parasitism, which may have a stabilizing influence on the host–parasitoid interaction.
Relationship between pest and disease incidences and agronomic operations implemented by farmers in cinnamon ( Cinnamomum zeylanicum Blume) fields in southern Sri Lanka
- G. G. Jayasinghe, K. H. M. P. K. Ketakumbura, K. Wijesinghe, K. S. Hemachandra, S. Weligamage
- 20 March 2016
The national average productivity of cinnamon (Cinnamomum zeylanicum Blume) in Sri Lanka (445 kg/ha) is far below than the attainable yield (1000 kg/ha), which may have an association with pest and…
Mealybugs (Hemiptera: Pseudococcidae) introduced recently to Sri Lanka, with three new country records
Developmental biology and feeding efficiency of Menochilus sexmaculatus (Coleoptera: Coccinellidae) (Fabricius) reared on Aphis craccivora (Hemiptera:Aphididae) (Koch)
Feeding Efficacy of M. sexmaculatus adults was higher than larvae and the feeding efficacy increased with the larval instars, indicating its suitability as a biocontrol agent.