Browsing by Subject "Insect pests"
Now showing items 1-13 of 13
-
(Texas A&M University. Libraries, 1982)Studies of citrus blackfly (CBF), Aleurocanthus woglumi Ashby, in the Lower Rio Grande Valley of Texas (1977-82) indicated a widespread current distribution of the exotic parasite Encarsia opulenta Silvestri, established ...
-
(Texas A&M University. Libraries, 1989)Six exotic Hymemoptera parasite species were evaluated for parasitization of the southwestern corn border (SWCB), diatraea grandiosella Dyar (Lepidoptera: Pyralidae). Studies were conducted in the laboratory and in commercial ...
-
(Texas A&M University. Libraries, 1984)Problem solving in integrated pest management (IPM) is a complex procedure involving the use of mathematical models and rapidly proliferating information. The effectiveness of an IPM decision-maker is a function of how ...
-
(Texas A&M University. Libraries, 1981)Five species of panicle--feeding bugs were found in commercial sorghum in southeast central Texas: Rice stink bug (Oebalus pugnax F.), southern green stink bug (Nezara viridu la L.), leaffooted bug (Leptoglossus phyllopus ...
-
(Texas A&M University. Libraries, 1988)Updating of the treatment recommendations used by Texas rice producers' for the management of the rice stink bug (RSB) is the objective of this study. Present treatment recommendations used in Texas and throughout the ...
-
(Texas A&M University. Libraries, 1980)Seventy-seven genotypes of buffelgrass were screened for resistance to the spittlebug complex A. albofasciata (Lallemand) and. P. simulans (Walker) in Apodaca, N. L. Screening involved artificially infesting plants in caged ...
-
Factors influencing the population dynamics of brown soft scale, Coccus hesperidum L. in South Texas (Texas A&M University. Libraries, 1983)The brown soft scale in South Texas is usually controlled by a complex of parasites. Observations made over a ten year period showed that the scale was disrupted by drift of ethyl and methyl parathion from applications ...
-
(Texas A&M University. Libraries, 1981)A composite economic threshold was developed for use in management of lepidopterous cabbage pests. Major emphasis was on the cabbage looper, Trichoplusia ni (Hubner), diamondback moth, Plutella xylostella (L.), and imported ...
-
(Texas A&M University. Libraries, 1988)Four plant allelochemicals, gossypol, nicotine, tomatine and solanine, were tested for their effect on the host-parasitoid system of Heliothis virescens-Campoletis sonorensis. In this study, the common effects seen with ...
-
Pheromonal trapping methods for the lesser grain borer, Rhyzopertha dominica (Fab.), in warehouses (Texas A&M University. Libraries, 1984)Tests were performed in warehouses to develop optimal trapping methods for the lesser grain borer, Rhyzopertha dominica (Fab.), using dominicalure as the attractant and to study their efficiency for estimating infestation ...
-
(2021-04-19)Currently, insecticide applications and Bt cotton are the primary means for managing insect pests in cotton, but many of these pests have developed resistance to pesticides. Because of resistance, host plant resistance may ...
-
(Texas A&M University. Libraries, 1981)A degree day model for predicting overwintering and 1st summer generation pecan nut casebearer (pnc), Acrobasis nuxvorella Neunzig (Lepidoptera: Pyralidae), activity was developed. The starting date and base temperature ...
-
(Texas A&M University. Libraries, 1985)Field, greenhouse and laboratory studies were conducted to determine the effect of cotton trichome density on parasitism and predation of Heliothis zea (Boddie) eggs. In a no-choice field test of three cotton phenotypes ...