The document discusses the pine sawfly, an insect pest that attacks various pine tree species. It provides details on the pine sawfly's technical name, family, order, hosts, life cycle, appearance at different stages, damage caused, and control methods. The larvae feed on pine needles, causing sparse foliage and slower tree growth. Control involves natural predators, hand picking, and insecticide applications of bifenthrin or permethrin.

1. Subject Forest EntomologySubject Forest Entomology
Bilal RiazBilal Riaz
BAGF13E311BAGF13E311
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EntomologyEntomology

2. Subject Forest EntomologySubject Forest Entomology
Topic : Pine SawflyTopic : Pine Sawfly
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EntomologyEntomology

3. Technical Name:Technical Name:
Family:Family:
OrderOrder
Pine SawflyPine Sawfly

4. Pine Sawfly
• Technical Name:Neodiprion spp./
Zadiprion spp.
• Family: Diprionidae
• Order: Hymenoptera
• Host : pine
• Alternate host: Ponderosa, pinyon

5. Pine Sawfly
• Larva
• Mostlly yellowish green with black spots.
• Orange head capsule
• Mature larvae are 10mm long
• Resemble with larvae of caterpillar
• Caterpillar have 2-5 pair of fleshy proleg buts
sawfly have more than 5 pair of legs on
abdomen

6. Pine Sawfly
• Adult
• Female are yellowish brown and large in size
• Male are mostly black but smaller in size
• Size range from(10-12mm) about ½ inch

7. Pine Sawfly
• Life Cycle
• Female sawflies have blade like plate to make
slit in pine needle
• She insert their eggs in these small openings.
• After hatching small larvae feed their.
• Mature larvae spin a cacoon that turn brown
• Some have more than 1 generation

8. Pine Sawfly
• Damage
• Larvae attack last year’s foliage
• Sparse foliage and thin crowns.
• Growth become slower
• Mortality may occur

9. Pine Sawfly
• Control
• Natural enemies predator, starvation and
unfavourable weather
• Cultural Control
 Hand picking
• Insecticides:
 Bifenthrin
 permethrin

10. Pine Sawfly
• Control
• Natural enemies predator, starvation and
unfavourable weather
• Cultural Control
 Hand picking
• Insecticides:
 Bifenthrin
 permethrin