Abstract
Shisham <i>Dalbergia sissoo</i> Roxb. is the most popular and valuable timber species found throughout India-Pakistan sub-continent. The present study was undertaken in the province of Jharkhand to find out the insect pest fauna of <i>D. sissoo</i> their infestation and seasonal incidence. Total seventeen insect pests were recorded from the region out of which five insects belongs to Coleoptera <i>viz. Apoderus sissu, Anomala dalbergiae, Anomala bengalensis, Myllocerus undecimpustulatus</i> and <i>Myllocerus discolour</i> were observed. Similarly, five insect pests of order Lepidoptera <i>viz. Agrotis ipsilon, Plecoptera reflexa, Ascotis infixaria, Dichomeris eridantis</i> and <i>Leucoptera sphenograpta</i> were observed. Six insect pests belonging to order Hemiptera <i>viz. Lawana conspersa, Ceroplastes rusci, Leptocentrus taurus, Myzus persicae, Icerya seychellarum, Drosicha dalbergiae</i> and <i>Odontotermes obesus</i>. Among these, two insect pests <i>Lawana conspersa</i> and <i>Icerya seychellarum</i> were found first time on <i>D. sissoo.</i> Additionally, nature of damage, seasonal incidence and their infestation was also observed during the course of study.
Highlights
Dalbergia sissoo Roxb. is one of the valuable timber species occur naturally and plantation in Southeast Asia
Some more scattered works have been done on insect pests of D. sissoo, but none of the study has been done for the province of Jharkhand
The insect pests of D. sissoo and their nature of damage described insect wise (Table 1) revealed that total seventeen insect pests were recorded from the region out of which five insect pests were belongs to Coleoptera viz. Apoderus sissu, Anomala dalbergiae, Anomala bengalensis, Myllocerus undecimpustulatus and Myllocerus discolour were observed
Summary
Dalbergia sissoo Roxb. is one of the valuable timber species occur naturally and plantation in Southeast Asia. Is one of the valuable timber species occur naturally and plantation in Southeast Asia It is a deciduous tree, known as Shisham, Sisu or Sissoo mainly distributed in northern and central provinces of India. It is primarily found growing along river banks at 900 m elevation, but can be raised naturally up to 1,300 m. Bihar province is largest producer of D. sissoo and it is planted on roadside along canals and farmers field as bund plantation Timber of this species is internationally known for its grain quality and strength. Several groups of insects belonging to orders, Coleoptera, Hymenoptera, Lepidoptera and Isoptera are the major pests that cause high economic loss to the nursery, natural and plantations. This study was undertaken to find out the insect pest fauna associated with D. sissoo, their infestation and seasonal incidence in the province of Jharkhand, India
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