Muhammad Ijaz, Sayed Rashad Ali Shah*, Muhammad Izhar-ul-Haq and Amir Afzal
...f and spots per leaf and defoliation indices. Correlation between defoliation and spots per leaf are negative in Virginia (-0.12 to 0.22) and Spanish (-0.39 to 0.01), whereas positive in Valencia (0.17 to 0.78) were calculated. While positive correlation between multiple of spots per leaf and sporulation were computed. ...
Using Smartphone Application to Estimate the Defoliation Caused by Insect Herbivory in Various Crops
Muhammad Irfan Ullah1*, Muhammad Arshad1, Sajjad Ali2, Asad Abdullah1, Samina Khalid3, Hafiz Muhammad Aatif4, Syed Muhammad Ali Zahid1, Muhammad Afzal1 and Jaima Molina-Ochoa5
Muhammad Ramzan1*, Unsar Naeem-Ullah2, Muhammad Umair Sial2, Naeem Iqbal2 and Shafqat Saeed2
...e pest can cause 80-100% defoliation. The various confirmed host of T. varians include Ficus benjamina, F. religiosa, F. benghalensis, F. caraica, F. infectoria, F. elastica, F. nitida, Artocarpus communis, A. heterpphyllus and A. kamansi. Fairly limited studies are documented for its chemical and biological management. For chemical control, deltamethrin was proved more toxic while among biological control agents Goryphus sp., Enicospilus sp., Telenomus sp, Li...
Mohammad Saleem and C. A. Call
...ittle is known about the defoliation responses of the palatable grass Chrysopogon aucheri (Boiss.) Stapf. and the co-occurring unpalatable grass. Chymbopogon jwarancusa (Jones) Schult., under managed and unmanaged conditions on Baluchistan rangelands. Both species were grown in monoculture and in a 50:50 mixture in an 11-month (44-week) greenhouse study. Defoliation treatments were implemented when plants wer...
Wali-ur-Rehman and M. Ismail Chaudhry
...ta) causing
serious defoliation over an area of 1600 hectares in
Bagh Forest Division of Azad Jammu and Kashmir. The
months emerging from mid July to mid August, lay eggs on
the under surface of leaves in clusters. Hatching of
eggs takes place from mid August to mid September. The
caterpillars, exhibiting nocturnal and processoinary
behavior, live for 10 to 11.5 months, mid August to end
of June next year. Pupation takes place from mid June to
end...
Wali-ur-Rahman and M. I on ail Chaudhry
...us leaf stitchers caused defoliation of kail trees in patches in the Galis Forest Division at Chatri R. near Thandiani, Bagan near Nathiagali and Darwaza near Kuzagali in Hazara, N.W.F.P.
...
M. Ismail Chaudhry
... of all ages by complete defoliation. Having an annual life cycle the pest hibernates as pupae in the soil, emerging in May/June as adult moths and veraciously devouring blue pine needles from July to October.
...
M. Iqbal Ahmad, Hanif Gul and Wali-ur-Rehman
...in August, 1980, causing defoliation over about 3175 acres. The insect has an annual life cycle with moths emerging in May. These have brownish grey wings with thick black and white strips, exhibiting close mimicry with tree trunks. They hide
under plant debris during day and become active at dusk and dawn. Moths spend the night sitting on tree trunks and on fresh needles....
Wali-ur-Rehman and M. Ismail Chaudhry
... 1031 with corresponding defoliations. Population per tree on northern aspects was 506 with medium defoliation while in most shady places and deep nullahs defoliation was either light or negligible with lowest population (208 per tree). An average population of 1788,794, 571and 208 larvae per tree, respectively caused complete, heavy, medium and light defoliation
M. Ismail Chaudhry and Wali-ur-Rehman
...stwood caused whole sale defoliation of Pinus roxburghii in nine square kilometers in Mirpur forest during 1970-71. study of biology revealed that moths appear from middle of May to middle of July. Males are active fliers but live for a day while females are apterous, apodous and live for 3 to10 days with an average of 7 days. Females remain in
the pupal shell inside the bags and are impregnated by males by inserting their long abdomen through posterio...
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