. Cooperativa economica relazione di insetti. Insetti Utili; pesti di insetto. - 389 -. Numeri=falene intrappolato ^^infestazioni larvali 2 ARMYWORM (Pseudaletia unipuncta) - Texas - Media diffusa popu- relazioni su veccia e piccoli grani in Kaufman County. (Randolph). ARKANSAS - larve, fino alla terza età, luce sulla piccola granella come lontano nord come contea di Monroe tranne in sud Arkansas contea in cui i conteggi sono stati 15 a 16 per piede quadrato. (Warren). LOUISIANA - infestanti di due campi di avena da 4 a 6 per piede quadrato di Bossier parrocchia. Luce esistono popolazioni in Natchitoches, Rapides, Avoyelles e San Landry P

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. Cooperative economic insect report. Beneficial insects; Insect pests. - 389 -. Numbers=Moths trapped ^^Larval infestations 2 ARMYWORM (Pseudaletia unipuncta) - TEXAS - Medium widespread popu- lations on vetch and small grains in Kaufman County. (Randolph). ARKANSAS - Larvae, up to third instar, light on small grain as far north as Monroe County except in south Arkansas County where counts were 15 to 16 per square foot. (Warren). LOUISIANA - Infesting two fields of oats at 4 to 6 per square foot in Bossier Parish. Light populations exist in Natchitoches, Rapides, Avoyelles and St. Landry Parishes. (Oliver). MISSISSIPPI - Larvae numerous in oats in south delta counties at 10 to 15 per square foot, while in north delta counties less numerous at 3 to 5 larvae per square foot. (Hunsucker). TENNESSEE - No larvae found in State to date. (Mullett). ILLINOIS - Newly-hatched larvae on rank grasses in southern tip of State. (111. Ins. Rept. ) WIRE WORMS - OKLAHOMA - In experimental plots in Canadian County 40 percent of corn seed and 5 percent of seedling plants were damaged. Over 70 percent of soil insects found were wireworms. Only 8 percent of the seeds were damaged in McClain County. (Arbuthnot, Walton). CLOVER LEAF WEEVIL (Hypera punctata) - VIRGINIA - Damage to graz- ing clover was severe in places in Sussex County. (Wright). DELAWARE - Injury conspicuous in all red clover from Mt. Pleasant southward. Most larvae matured. (Milliron). ILLINOIS - Populations in southeastern and central areas averaged 10 per square foot. Populations in eastern areas were 7. 3 per square foot and in southwestern areas, 5 per square foot. The remainder of the State had a lower population. (111. Ins. Rept. ) CLOVER ROOT CURCULIO (Sitona hispidula) - NEBRASKA - From 1 to 2 per 25 sweeps on red clover in the southeast area. (Andersen). AA/EST VIRGINIA - Adults active in red clover over State. (Dorsey). MARYLAND Light numbers of adults present in alfalfa and clover fields in most areas. ( U.

Parole chiave associate all'immagine

• bookcentury1900
• booksubjectbeneficialinsects
• booksubjectinsect