It should further be remembered that these observations apply only to the
northern region of the cotton belt ” and ... The fact that the Boll Worm was so
scarce during the past season precluded making extensive observations along
this line .
Author: Frederick William Mally
PINK BOLLWORM OF COTTON IN MEXICO . 25 discolor the lint . Just as soon as
the bolls are formed they may be attacked by the larvæ working downward from
the flower , but usually they are not attacked till one - half to three - fourths grown
Author: U. C. Loftin
Multiply the number of bollworm generations results when rosetted blooms by 10
to learn the cotton is planted over a long plant number of larvae present per acre .
ing period . Then the increased Boll inspection . — Walk diagopopulation of ...
Determining need for insecticide When early plantings mature , the The need for
insecticide applicamoths emerging in them migrate to tions to prevent damage by
the pink later fruiting , more attractive bollworm may be determined by cotton ...
Classification and synonomy; Geographical distribution; Original home; Food plants; Status of bollworm in foreign countries; Economic status in the United states; Distribution and destructive-ness in relation to life zones; Farm methods in ...
Author: Altus Lacy Quaintance
14 and 15 reduced immature green bolls remaining on the plants at harvest (
early November ) and the number of pink bollworm larvae an average of 95
percent ( table 25 ) . Chemically terminated cotton averaged over 133 kg / ha of
lint more ...
Author: T. J. Henneberry
PINK BOLL - WORM ( PLATYEDRA GOSSYPIELLA SAUND . ) GUJARAT During
the period of investigation on the Spotted Boll - worms at Surat , it was possible to
make a few observations about the Pink Boll - worm also . Twenty - five cotton ...
Author: B. P. Deshpande
CONTROL ON COTTON . CULTURAL PRACTICES . lead imp Several of the
measures best calculated to reduce bollworm injury in the cotton - growing States
are equally effective in checking the ravages of the boll weevil . No loss of money
Author: F. C. Bishopp
Category: Boll worm
Several of the measures best calculated to reduce bollworm injury in the cotton -
growing States are equally effective in checking the ravages of the boll weevil .
No loss of money or energy results from putting such cultural practices into effect
Author: Fred Corry Bishopp
Category: Helicoverpa armigera
THE BOLL - WORM OF COTTON . The Boll - worm ( Heliothis Armiger ) is a true
moth , like the Cotton Caterpillar , having the four regular stages of growth , viz . :
first , the egg ; second , the larva , or worm ; third , the chrysalis ; fourth , the moth
Joint action of foliar fertilizers-insecticide mixtures on cotton leaf worm, boll
worms and yield of cotton plants. Mededelingen Van de Faculteit
Landbouwwetenschappen, Rijksuniversiteit Gent 47:617–626. El-Nawawy, A.S.,
M.A. Ashry, A.A. ...
Publisher: DIANE Publishing
Taylor ( 50 ) , in Uganda , experimenting with nine resting larvae of the pink
bollworm , found that a relative humidity of 100 ... Survival of resting pink
bollworm larvae in open cotton bolls on the soil surface in the open and under a
Author: Lorin Courtney Fife
Cotton hosts at least half a dozen major pest species, including the pink bollworm
, the cotton bollworm, the lygus bug or fleahopper, the boll weevil, the cotton
aphid, and the tobacco budworm. Consequently, in many parts of the United
Author: John Harte
Publisher: Univ of California Press
Category: Health & Fitness
It is generally conceded that no extensive or serious damage is done the cotton
by the bollworm until about the time the corn crop matures . This is due to the fact
that corn has gotten too hard , the stalk has ripened , and the female moths are ...
Author: Frederick William Mally
Category: Boll weevil
ICSIRO: C. Ma bollworm. Current research in northern Australia is focussing on
winter-production systems. Quarantine: Pink bollworm could cause serious
damage if it spread to, and established in, the eastern cotton-producing regions.
Author: P. T. Bailey
Publisher: CSIRO PUBLISHING
Category: Technology & Engineering
Thus , the equatorial zone appears to have served as an ecological barrier that
the pink bollworm has been unable to ... Another cotton insect that has failed to
become established across the Equator is a red bollworm , Diparopsis watersi ...
Author: Maurice James Lukefahr
Farmers attribute these things June ; rust in September ; and boll - worm and
shedding in to seasons less favorable to cotton than to its enemies . The July and
August . Shedding is attributed to wet following worms are attributed to too much
Author: United States. Census Office
Category: United States
THE COTTON BOLLWORM . ( Heliothis armiger Hübn . ) Unlike the cotton worm ,
this insect is by no means confined to America , nor is it confined to cotton as a
food plant . It is known in many other parts of the world , and it can not be ...
Author: Leland Ossian Howard