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images of lifecycles of some insects




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Plant protection Pests Mango hopper (Tenemanchu purugu) ( Idioscopus clypealis , Idioscopus nitidulus   Amritodus atkinsoni   )             Damage is caused by sucking sap from tender leaves and inflorescence. Ovipositional punctures also cause damage to tender leaves and inflorescence. Severely infested leaves become curled and inflorescence gets dried. Affected parts are covered with honeydew and sooty mould. Control One spray with carbaryl @ 3 gms/litre of water in November before panicle  formation   ensuring  that tree trunks are also thoroughly drenched during the spray. During full length stage of panicle but before full bloom full bloom stage spraying with endosulfan @ 2 ml /litre of water or Dimethoate @ 2 ml /litre of water or imida cloprid @ 0.3 ml/ litre of water if incidence of hoppers is high (more than 5-10 per panicle).After fruit set at pea size stage spraying with imida c...
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POMEGRANATE INSECT PESTS AND DISEASES author:- swaroopa.v

pomegranate insect pests Article by:- swaroopa.v Anar butterfly/ Pomegranate fruit borer:- scientific name:- Virachola isocrates , Deudorix isocrates Family:-Lycaenidae order:-Lepidoptera Damage symptoms:- 👉Caterpillar bores into young fruits. 👉Feeds on internal contents (pulp and seeds). 👉Fruit rotting and dropping may occur. Fruit sucking Moth:- Scientific Name:- Othreis fullonica , Othreis materna Family:-Noctuidae Order:-Lepidoptera Damage symptoms:- 👉A circular pinhole like spot appears at the feeding site. 👉Later on, the area around the damaged portion turns yellowish-brown. 👉 The punctured fruits are easily infected with bacteria and fungi. As a result, the fruit rot and falls prematurely.  Diseases:- 1.Bacterial leaf and  fruit spot :- Disease symptoms:- 👉 appearance of one to several small water soaked,dark coloured irregular spots on leaves resulting in premature defoliation under severe cases. 👉 The pathogen also infects stem and br...
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TYPES OF SOILS IN INDIA YOU MUST KNOW

  TYPES OF SOILS IN INDIA YOU MUST KNOW                                                 -NAGA SPURTHI    INTRODUCTION As a horticulture or agriculture student we must identify the soils in order to know the productivity and other properties of soil. Here are the top soils and their easy identification :                                   1: Alluvial soil (43%) Colour: Light Grey to Ash Grey. Texture: Sandy to silty loam or clay. Rich in: potash Poor in: phosphorous. Crops : Wheat, rice, maize, sugarcane, pulses, oilseed etc are cultivated mainly. Area : covers 143 sq.km in India . Widespread in northern plains and river valleys. Properties. : Humus, lime and organic matter are...
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