Pheromone Output by <I>Rhyzopertha dominica</I> (Coleoptera: Bostrichidae), as Affected by Host Plant and Beetle Size

Root Growth of Morus Alba as Affected by Cutting Size and Low Polythene Tunnel

An effort carried out to find out the smaller size of cuttings for propagation ofMorus alba in Experimental area, Department of Forestry, Range Management and Wildlife, University of Agriculture, Faisalabad, 2005. Different size of cuttings i.e.5 cm, 10 cm, 15 cm and 20 cm were planted in polythene tubes of 9 cm x 18 cm. The attempt was also made to compare the performance of cuttings outdoor a...

Sunflower summer-planting yield as affected by plant population and nitrogen application rates

Sunflower morphology and yield as affected by foliar applications of plant growth regulators

Plant height of sunflower is a major agronomic trait affecting crop performance in the field and its adaptation to mechanical harvest. Field experiments were conducted to study the effect of foliar application of paclobutrazol (PBZ) at 12.5 g ai/ha, mepiquat chloride (MPC) at 25.0 g ai/ha and chlormequat chloride (CCC) at 1,500 g ai/ha in single or double applications on sunflower plant mor...

Pheromone interruption of pine engraver, Ips pini, by pheromones of mountain pine beetle, Dendroctonusponderosae (Coleoptera: Scolytidae)

The effect of pheromones of Hopkins on the at t ract ion of Ips pini (Say) to its pheromone, ipsdienol, was investigated in stands of lodgepole pine. The mixture of cisand trans-verbenol significantly reduced catches of 1. pini in t raps baited with ipsdienol at three locations in British Columbia. exo-Brevicomin had no effect on catches of f. pini, irrespective of the enantiomeric composition ...

Integration of Visual and Olfactory Cues in Host Plant Identification by the Asian Longhorned Beetle, Anoplophora glabripennis (Motschulsky) (Coleoptera: Cerambycidae)

Some insects use host and mate cues, including odor, color, and shape, to locate and recognize their preferred hosts and mates. Previous research has shown that the Asian longicorn beetle, Anoplophora glabripennis (Motschulsky), uses olfactory cues to locate host plants and differentiate them from non-host plants. However, whether A. glabripennis adults use visual cues or a combination of visua...