CDFA IPM Exam 2023/2024 (Revised) A+.

CDFA IPM Exam 2023/2024 (Revised) A+. 2,4-D is used to control? - ANSWER annual broadleaf weeds in crops Spry Oil Properties - ANSWER High Viscosity in Summer with high heat: Less Phytotoxic Low Viscosity in Winter with low heat: Heavier Oil What is 2-4D amine? - ANSWER Salt What are IGR? - ANSWER Insect Growth Regulators, Mimic natural hormones and interfere with growth Herbicides adsorbs/binds to which kind of soil? - ANSWER Soil with high organic/clay content and Low pH, high temperature Year of earliest bio control? - ANSWER 1200AD Biological control became popular in 1962 with release of which book? - ANSWER Silent spring Which years during WWI was pesticide research done? - ANSWER What is Direct and Indirect damage in plants? - ANSWER Direct damage: Feed on part of crop we use Indirect damage: Feed on part of plant we do not use How is Tristeza on citrus avoided? - ANSWER Use tristeza free material American Fourbrood (AFB) is caused by what? - ANSWER Spore forming Paenibacillus larvae ssp. / most most widespread and destructive of brood diseases Africanized honey bees are considered what? - ANSWER Agressive The alfalfa butterfly parasite attack: ( early instars, later instars or eggs) - ANSWER Early instars Alligator Wee, Rating - ANSWER A Anticoagulant baits are used because why? - ANSWER The don't develop resistance in animals Where are anticoagulants placed for mice and rats? - ANSWER Placed in bait boxes ( not scattered) How are Ants a problem? - ANSWER Eat tender new growth, nuisance ALL THE ABOVE Which are considered Pests of bee hives? - ANSWER Verroa and Tracheal mites, raccoons, small hive beetle, ants, bears, skunks and mice An appeal by a beekeepers is to What? - ANSWER Take sample with inspector jointly and send a written appeal to CDFA secretary Arrhentoky - ANSWER Form of parthenogenesis where unfertilized eggs develop into males Ash and other trees are affected by what during cool springs? - ANSWER Anthracnose Augmentative control is defined as? - ANSWER Supplementing the numbers of naturally occurring beneficial populations with mass-reared insects Inoculative control (Augmentative) - ANSWER Release of beneficial is made on the crop ONCE during season. Control is ensured for rest of season by their offsprings. Inundative control (Augmentative) - ANSWER Releases are planned when pests are only controlled by released beneficials themselves. More frequent releases are necessary. Bats are in general? - ANSWER Insectivorous Bees pollinate what crops in desert regions? - ANSWER Alfalfa Bees pollinate which crops in arid regions of CA, NV and AZ? - ANSWER Cotton/Alfalfa Biocontrol of musk thistle: Eats what part of the plant? (Seed head, stems or leaves) - ANSWER See head Bio Control on citrus has been effective for all the following except for? - ANSWER Citrus Blackfly The bio control trichogramma wasp controls what? - ANSWER Parasitizes insect eggs Black tailed jack rabbit: (game animal or non game animal) - ANSWER Game animal Botrytis characteristics and control - ANSWER Characteristic: Fungus overwinters as sclerotia in berry mummies on the ground or hanging on vines and in canes. Spore production occur in spring. Infections may occur during bloom should rains occur. Late infections are most severe when RH exceeds 92%. Control: Good coverage of fungicides on canopy. Using cultural control methods like leaf removal, using resistant varieties. Broomrape is a pest of? - ANSWER Tomatoes A burrow baiting machine works poorly in which soil? - ANSWER Sandy or muddy soil Causal agent of AFB? - ANSWER Bacterial (bacillus larvae) Characteristics of cliff swallows and nests? - ANSWER Square tail, white forehead, steel-blue crown Build mud nests under leaves of houses and buildings Then Cinnabar moth is the bio control agent for what? - ANSWER Tansy Ragwort Citrus bud mites leads to what? - ANSWER Distorted fruit What is bio control for Citrus mites? - ANSWER Predaceous mite Euseius tularensis, spiders, lacewings and minute pirate bugs Citrus thrips cause what damage? - ANSWER Silvery scars on fruit Citrus thrips overwinter as what? - ANSWER Eggs laid on green twigs, new leaves What color are anticoagulants? - ANSWER Green or Blue Control of Klamathweed/St. Johnswort weed? - ANSWER Leaf-feeding flea beetles (Chrysolina sp) and Root boring beetles Control of phytophthora and root knot nematode? - ANSWER Water control / Sanitation / Resistant Variety Crescent shaped mounds are made by? - ANSWER Gophers Define a selective herbicide? - ANSWER Primarily acts on particular weeds without causing significant damage to non-target weeds. Define Classical Bio Control? - ANSWER The importation, introduction and establishment of NE's to reduce the density of a population to a level that is convenient to man. Define Hyperparasitism? - ANSWER One species of parasite feeds in or lays eggs in another species, often called a parastoid Definition of apiary pest? - ANSWER AFB, parasite, hereditary disease: All of the Above .